diff --git a/src/LogExpert.Core/Classes/Persister/EncodingJsonConverter.cs b/src/LogExpert.Core/Classes/Persister/EncodingJsonConverter.cs
new file mode 100644
index 00000000..95dcc29d
--- /dev/null
+++ b/src/LogExpert.Core/Classes/Persister/EncodingJsonConverter.cs
@@ -0,0 +1,53 @@
+using System.Text;
+
+using Newtonsoft.Json;
+
+namespace LogExpert.Core.Classes.Persister;
+
+/// <summary>
+/// Custom JsonConverter for Encoding objects.
+/// Serializes the encoding as its name (e.g. "utf-8").
+/// </summary>
+public class EncodingJsonConverter : JsonConverter
+{
+    public override bool CanConvert (Type objectType)
+    {
+        return typeof(Encoding).IsAssignableFrom(objectType);
+    }
+
+    public override void WriteJson (JsonWriter writer, object? value, JsonSerializer serializer)
+    {
+        ArgumentNullException.ThrowIfNull(writer);
+        if (value is not Encoding encoding)
+        {
+            writer.WriteNull();
+            return;
+        }
+
+        writer.WriteValue(encoding.WebName);
+    }
+
+    public override object? ReadJson (JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
+    {
+        ArgumentNullException.ThrowIfNull(reader);
+        if (reader.TokenType == JsonToken.Null)
+        {
+            return null;
+        }
+
+        var encodingName = reader.Value?.ToString();
+        if (string.IsNullOrEmpty(encodingName))
+        {
+            return Encoding.Default;
+        }
+
+        try
+        {
+            return Encoding.GetEncoding(encodingName);
+        }
+        catch (ArgumentException)
+        {
+            return Encoding.Default;
+        }
+    }
+}
diff --git a/src/LogExpert.Core/Classes/Persister/PersistenceData.cs b/src/LogExpert.Core/Classes/Persister/PersistenceData.cs
index 71a6fea4..ca061d31 100644
--- a/src/LogExpert.Core/Classes/Persister/PersistenceData.cs
+++ b/src/LogExpert.Core/Classes/Persister/PersistenceData.cs
@@ -3,6 +3,8 @@
 using LogExpert.Core.Classes.Filter;
 using LogExpert.Core.Entities;
 
+using Newtonsoft.Json;
+
 namespace LogExpert.Core.Classes.Persister;
 
 [Serializable]
@@ -18,6 +20,7 @@ public class PersistenceData
 
     public int CurrentLine { get; set; } = -1;
 
+    [JsonConverter(typeof(EncodingJsonConverter))]
     public Encoding Encoding { get; set; }
 
     public string FileName { get; set; }
diff --git a/src/LogExpert.Core/Classes/Persister/Persister.cs b/src/LogExpert.Core/Classes/Persister/Persister.cs
index 6d4dfc15..7d202d35 100644
--- a/src/LogExpert.Core/Classes/Persister/Persister.cs
+++ b/src/LogExpert.Core/Classes/Persister/Persister.cs
@@ -14,6 +14,19 @@ public static class Persister
 
     private static readonly Logger _logger = LogManager.GetCurrentClassLogger();
 
+    private static readonly JsonSerializerSettings _jsonSettings = new()
+    {
+        Converters =
+            {
+                new ColumnizerJsonConverter(),
+                new EncodingJsonConverter()
+            },
+        Formatting = Formatting.Indented,
+        //This is needed for the BookmarkList and the Bookmark Overlay
+        ReferenceLoopHandling = ReferenceLoopHandling.Serialize,
+        PreserveReferencesHandling = PreserveReferencesHandling.Objects,
+    };
+
     #endregion
 
     #region Public methods
@@ -217,24 +230,16 @@ private static string BuildSessionFileNameFromPath (string logFileName)
     /// <param name="persistenceData">The data to be persisted. This cannot be null.</param>
     private static void Save (string fileName, PersistenceData persistenceData)
     {
-        var settings = new JsonSerializerSettings
-        {
-            Converters =
-            {
-                new ColumnizerJsonConverter()
-            },
-            Formatting = Formatting.Indented,
-        };
-
         try
         {
-            var json = JsonConvert.SerializeObject(persistenceData, settings);
+            var json = JsonConvert.SerializeObject(persistenceData, _jsonSettings);
             File.WriteAllText(fileName, json, Encoding.UTF8);
         }
-        catch (Exception ex)
+        catch (Exception ex) when (ex is JsonSerializationException or
+                                         UnauthorizedAccessException or
+                                         IOException)
         {
             _logger.Error(ex, $"Error saving persistence data to {fileName}");
-            throw;
         }
     }
 
@@ -257,17 +262,8 @@ private static PersistenceData LoadInternal (string fileName)
 
         try
         {
-            var settings = new JsonSerializerSettings
-            {
-                Converters =
-                {
-                    new ColumnizerJsonConverter()
-                },
-                Formatting = Formatting.Indented,
-            };
-
             var json = File.ReadAllText(fileName, Encoding.UTF8);
-            var data = JsonConvert.DeserializeObject<PersistenceData>(json, settings);
+            var data = JsonConvert.DeserializeObject<PersistenceData>(json, _jsonSettings);
             // Call Init on all FilterParams if needed
             if (data?.FilterParamsList != null)
             {
@@ -287,7 +283,8 @@ private static PersistenceData LoadInternal (string fileName)
 
             return data;
         }
-        catch (Exception ex) when (ex is UnauthorizedAccessException or
+        catch (Exception ex) when (ex is JsonSerializationException or
+                                         UnauthorizedAccessException or
                                          IOException)
         {
             _logger.Error(ex, $"Error loading persistence data from {fileName}");
diff --git a/src/LogExpert.Core/Classes/Persister/ProjectData.cs b/src/LogExpert.Core/Classes/Persister/ProjectData.cs
index 8b9dcaf3..47f64a7d 100644
--- a/src/LogExpert.Core/Classes/Persister/ProjectData.cs
+++ b/src/LogExpert.Core/Classes/Persister/ProjectData.cs
@@ -1,11 +1,18 @@
 namespace LogExpert.Core.Classes.Persister;
 
+[Serializable]
 public class ProjectData
 {
     #region Fields
 
-    public List<string> MemberList { get; set; } = [];
+    /// <summary>
+    /// Gets or sets the list of members.
+    /// </summary>
+    public List<string> FileNames { get; set; } = [];
 
+    /// <summary>
+    /// Gets or sets the XML representation of the tab layout configuration.
+    /// </summary>
     public string TabLayoutXml { get; set; }
 
     #endregion
diff --git a/src/LogExpert.Core/Classes/Persister/ProjectPersister.cs b/src/LogExpert.Core/Classes/Persister/ProjectPersister.cs
index 19b0de76..726f1566 100644
--- a/src/LogExpert.Core/Classes/Persister/ProjectPersister.cs
+++ b/src/LogExpert.Core/Classes/Persister/ProjectPersister.cs
@@ -1,67 +1,54 @@
-using System.Collections.Generic;
-using System.Xml;
+using System.Text;
+
+using Newtonsoft.Json;
+
+using NLog;
 
 namespace LogExpert.Core.Classes.Persister;
 
 public static class ProjectPersister
 {
+    private static readonly Logger _logger = LogManager.GetCurrentClassLogger();
+
     #region Public methods
 
-    public static ProjectData LoadProjectData(string projectFileName)
+    public static ProjectData LoadProjectData (string projectFileName)
     {
-        ProjectData projectData = new();
-        XmlDocument xmlDoc = new();
-        xmlDoc.Load(projectFileName);
-        var fileList = xmlDoc.GetElementsByTagName("member");
-        foreach (XmlNode fileNode in fileList)
+        try
         {
-            var fileElement = fileNode as XmlElement;
-            var fileName = fileElement.GetAttribute("fileName");
-            projectData.MemberList.Add(fileName);
-        }
+            var settings = new JsonSerializerSettings
+            {
+                Formatting = Formatting.Indented,
+            };
 
-        var layoutElements = xmlDoc.GetElementsByTagName("layout");
-        if (layoutElements.Count > 0)
+            var json = File.ReadAllText(projectFileName, Encoding.UTF8);
+            return JsonConvert.DeserializeObject<ProjectData>(json, settings);
+        }
+        catch (Exception ex) when (ex is UnauthorizedAccessException or
+                                 IOException)
         {
-            projectData.TabLayoutXml = layoutElements[0].InnerXml;
+            _logger.Error(ex, $"Error loading persistence data from {projectFileName}");
+            return new ProjectData();
         }
-
-        return projectData;
     }
 
-
-    public static void SaveProjectData(string projectFileName, ProjectData projectData)
+    public static void SaveProjectData (string projectFileName, ProjectData projectData)
     {
-        XmlDocument xmlDoc = new();
-        var rootElement = xmlDoc.CreateElement("logexpert");
-        xmlDoc.AppendChild(rootElement);
-        var projectElement = xmlDoc.CreateElement("project");
-        rootElement.AppendChild(projectElement);
-        var membersElement = xmlDoc.CreateElement("members");
-        projectElement.AppendChild(membersElement);
-        SaveProjectMembers(xmlDoc, membersElement, projectData.MemberList);
+        var settings = new JsonSerializerSettings
+        {
+            Formatting = Formatting.Indented,
+        };
 
-        if (projectData.TabLayoutXml != null)
+        try
         {
-            var layoutElement = xmlDoc.CreateElement("layout");
-            layoutElement.InnerXml = projectData.TabLayoutXml;
-            rootElement.AppendChild(layoutElement);
+            var json = JsonConvert.SerializeObject(projectData, settings);
+            File.WriteAllText(projectFileName, json, Encoding.UTF8);
         }
-
-        xmlDoc.Save(projectFileName);
-    }
-
-    #endregion
-
-    #region Private Methods
-
-    private static void SaveProjectMembers(XmlDocument xmlDoc, XmlNode membersNode, List<string> memberList)
-    {
-        foreach (var fileName in memberList)
+        catch (Exception ex) when (ex is JsonSerializationException or
+                                         UnauthorizedAccessException or
+                                         IOException)
         {
-            var memberElement = xmlDoc.CreateElement("member");
-            membersNode.AppendChild(memberElement);
-            memberElement.SetAttribute("fileName", fileName);
+            _logger.Error(ex, $"Error saving persistence data to {projectFileName}");
         }
     }
 
diff --git a/src/LogExpert.Core/Entities/Bookmark.cs b/src/LogExpert.Core/Entities/Bookmark.cs
index 642098e8..4ae563a3 100644
--- a/src/LogExpert.Core/Entities/Bookmark.cs
+++ b/src/LogExpert.Core/Entities/Bookmark.cs
@@ -1,5 +1,7 @@
 using System.Drawing;
 
+using Newtonsoft.Json;
+
 namespace LogExpert.Core.Entities;
 
 [Serializable]
@@ -7,6 +9,9 @@ public class Bookmark
 {
     #region cTor
 
+    [JsonConstructor]
+    public Bookmark () { }
+
     public Bookmark (int lineNum)
     {
         LineNum = lineNum;
diff --git a/src/LogExpert.UI/Controls/LogWindow/LogWindow.cs b/src/LogExpert.UI/Controls/LogWindow/LogWindow.cs
index 6473f427..071e5740 100644
--- a/src/LogExpert.UI/Controls/LogWindow/LogWindow.cs
+++ b/src/LogExpert.UI/Controls/LogWindow/LogWindow.cs
@@ -4630,6 +4630,11 @@ private void CheckForFilterDirty ()
     [SupportedOSPlatform("windows")]
     private bool IsFilterSearchDirty (FilterParams filterParams)
     {
+        if (filterParams == null || filterParams.SearchText == null)
+        {
+            return true;
+        }
+
         if (!filterParams.SearchText.Equals(filterComboBox.Text, StringComparison.Ordinal))
         {
             return true;
diff --git a/src/LogExpert.UI/Dialogs/LogTabWindow/LogTabWindow.cs b/src/LogExpert.UI/Dialogs/LogTabWindow/LogTabWindow.cs
index 2f95deec..0918752b 100644
--- a/src/LogExpert.UI/Dialogs/LogTabWindow/LogTabWindow.cs
+++ b/src/LogExpert.UI/Dialogs/LogTabWindow/LogTabWindow.cs
@@ -386,7 +386,7 @@ public LogWindow.LogWindow AddFileTab (string givenFileName, bool isTempFile, st
         }
 
         // this.BeginInvoke(new LoadFileDelegate(logWindow.LoadFile), new object[] { logFileName, encoding });
-        Task.Run(() => logWindow.LoadFile(logFileName, encodingOptions));
+        _ = Task.Run(() => logWindow.LoadFile(logFileName, encodingOptions));
         return logWindow;
     }
 
@@ -404,7 +404,7 @@ public LogWindow.LogWindow AddMultiFileTab (string[] fileNames)
         multiFileEnabledStripMenuItem.Checked = true;
         EncodingOptions encodingOptions = new();
         FillDefaultEncodingFromSettings(encodingOptions);
-        BeginInvoke(new LoadMultiFilesDelegate(logWindow.LoadFilesAsMulti), fileNames, encodingOptions);
+        _ = BeginInvoke(new LoadMultiFilesDelegate(logWindow.LoadFilesAsMulti), fileNames, encodingOptions);
         AddToFileHistory(fileNames[0]);
         return logWindow;
     }
@@ -412,7 +412,7 @@ public LogWindow.LogWindow AddMultiFileTab (string[] fileNames)
     [SupportedOSPlatform("windows")]
     public void LoadFiles (string[] fileNames)
     {
-        Invoke(new AddFileTabsDelegate(AddFileTabs), [fileNames]);
+        _ = Invoke(new AddFileTabsDelegate(AddFileTabs), [fileNames]);
     }
 
     [SupportedOSPlatform("windows")]
@@ -450,7 +450,7 @@ public ILogLineColumnizer GetColumnizerHistoryEntry (string fileName)
                 }
             }
 
-            ConfigManager.Settings.ColumnizerHistoryList.Remove(entry); // no valid name -> remove entry
+            _ = ConfigManager.Settings.ColumnizerHistoryList.Remove(entry); // no valid name -> remove entry
         }
 
         return null;
@@ -562,7 +562,7 @@ public void SelectTab (ILogWindow logWindow)
     [SupportedOSPlatform("windows")]
     public void SetForeground ()
     {
-        NativeMethods.SetForegroundWindow(Handle);
+        _ = NativeMethods.SetForegroundWindow(Handle);
         if (WindowState == FormWindowState.Minimized)
         {
             if (_wasMaximized)
@@ -597,7 +597,7 @@ public void FollowTailChanged (LogWindow.LogWindow logWindow, bool isEnabled, bo
         if (Preferences.ShowTailState)
         {
             var icon = GetIcon(data.DiffSum, data);
-            BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWindow, icon);
+            _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWindow, icon);
         }
     }
 
@@ -762,7 +762,7 @@ private void AddFileTabs (string[] fileNames)
                 }
                 else
                 {
-                    AddFileTab(fileName, false, null, false, null);
+                    _ = AddFileTab(fileName, false, null, false, null);
                 }
             }
         }
@@ -915,7 +915,7 @@ private void FillHistoryMenu ()
         foreach (var file in ConfigManager.Settings.FileHistoryList)
         {
             ToolStripItem item = new ToolStripMenuItem(file);
-            strip.Items.Add(item);
+            _ = strip.Items.Add(item);
         }
 
         strip.ItemClicked += OnHistoryItemClicked;
@@ -928,7 +928,7 @@ private void RemoveLogWindow (LogWindow.LogWindow logWindow)
     {
         lock (_logWindowList)
         {
-            _logWindowList.Remove(logWindow);
+            _ = _logWindowList.Remove(logWindow);
         }
 
         DisconnectEventHandlers(logWindow);
@@ -944,7 +944,7 @@ private void RemoveAndDisposeLogWindow (LogWindow.LogWindow logWindow, bool dont
 
         lock (_logWindowList)
         {
-            _logWindowList.Remove(logWindow);
+            _ = _logWindowList.Remove(logWindow);
         }
 
         logWindow.Close(dontAsk);
@@ -981,7 +981,7 @@ private void FillHighlightComboBox ()
         groupsComboBoxHighlightGroups.Items.Clear();
         foreach (var group in HighlightGroupList)
         {
-            groupsComboBoxHighlightGroups.Items.Add(group.GroupName);
+            _ = groupsComboBoxHighlightGroups.Items.Add(group.GroupName);
             if (group.GroupName.Equals(currentGroupName, StringComparison.Ordinal))
             {
                 groupsComboBoxHighlightGroups.Text = group.GroupName;
@@ -1050,7 +1050,7 @@ private void LoadFiles (string[] names, bool invertLogic)
                 return;
             }
 
-            AddFileTab(names[0], false, null, false, null);
+            _ = AddFileTab(names[0], false, null, false, null);
             return;
         }
 
@@ -1089,7 +1089,7 @@ private void LoadFiles (string[] names, bool invertLogic)
         }
         else
         {
-            AddMultiFileTab(names);
+            _ = AddMultiFileTab(names);
         }
     }
 
@@ -1283,7 +1283,7 @@ private void ProgressBarUpdateWorker (ProgressEventArgs e)
                 _logger.Error(ex, "Error during ProgressBarUpdateWorker value {0}, min {1}, max {2}, visible {3}", e.Value, e.MinValue, e.MaxValue, e.Visible);
             }
 
-            Invoke(new System.Windows.Forms.MethodInvoker(statusStrip.Refresh));
+            _ = Invoke(new System.Windows.Forms.MethodInvoker(statusStrip.Refresh));
         }
     }
 
@@ -1304,7 +1304,7 @@ private void StatusLineEventWorker (StatusLineEventArgs e)
             labelCurrentLine.Size = TextRenderer.MeasureText(labelCurrentLine.Text, labelCurrentLine.Font);
             if (statusStrip.InvokeRequired)
             {
-                statusStrip.BeginInvoke(new System.Windows.Forms.MethodInvoker(statusStrip.Refresh));
+                _ = statusStrip.BeginInvoke(new System.Windows.Forms.MethodInvoker(statusStrip.Refresh));
             }
             else
             {
@@ -1383,7 +1383,7 @@ private Icon CreateLedIcon (int level, bool dirty, int tailState, int syncMode)
         // a managed copy of icon. then the unmanaged win32 handle is destroyed
         var iconHandle = bmp.GetHicon();
         var icon = Icon.FromHandle(iconHandle).Clone() as Icon;
-        NativeMethods.DestroyIcon(iconHandle);
+        _ = NativeMethods.DestroyIcon(iconHandle);
 
         gfx.Dispose();
         bmp.Dispose();
@@ -1414,7 +1414,7 @@ private void CreateIcons ()
     private void FileNotFound (LogWindow.LogWindow logWin)
     {
         var data = logWin.Tag as LogWindowData;
-        BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWin, _deadIcon);
+        _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWin, _deadIcon);
         dragControlDateTime.Visible = false;
     }
 
@@ -1423,7 +1423,7 @@ private void FileRespawned (LogWindow.LogWindow logWin)
     {
         var data = logWin.Tag as LogWindowData;
         var icon = GetIcon(0, data);
-        BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWin, icon);
+        _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWin, icon);
     }
 
     [SupportedOSPlatform("windows")]
@@ -1436,7 +1436,7 @@ private void ShowLedPeak (LogWindow.LogWindow logWin)
         }
 
         var icon = GetIcon(data.DiffSum, data);
-        BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWin, icon);
+        _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWin, icon);
     }
 
     private int GetLevelFromDiff (int diff)
@@ -1488,7 +1488,7 @@ private void LedThreadProc ()
                         }
 
                         var icon = GetIcon(data.DiffSum, data);
-                        BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWindow, icon);
+                        _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWindow, icon);
                     }
                 }
             }
@@ -1639,7 +1639,7 @@ private void SetTabIcons (Preferences preferences)
             {
                 var data = logWindow.Tag as LogWindowData;
                 var icon = GetIcon(data.DiffSum, data);
-                BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWindow, icon);
+                _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), logWindow, icon);
             }
         }
     }
@@ -1657,7 +1657,7 @@ private void SetToolIcon (ToolEntry entry, ToolStripItem item)
                 ? ToolStripItemDisplayStyle.ImageAndText
                 : ToolStripItemDisplayStyle.Image;
 
-            NativeMethods.DestroyIcon(icon.Handle);
+            _ = NativeMethods.DestroyIcon(icon.Handle);
             icon.Dispose();
         }
 
@@ -1726,7 +1726,7 @@ private void StartTool (string cmd, string args, bool sysoutPipe, string columni
             catch (Win32Exception e)
             {
                 _logger.Error(e);
-                MessageBox.Show(e.Message);
+                _ = MessageBox.Show(e.Message);
                 return;
             }
 
@@ -1753,7 +1753,7 @@ private void StartTool (string cmd, string args, bool sysoutPipe, string columni
             catch (Exception e)
             {
                 _logger.Error(e);
-                MessageBox.Show(e.Message);
+                _ = MessageBox.Show(e.Message);
             }
         }
     }
@@ -1818,16 +1818,11 @@ private void LoadProject (string projectFileName, bool restoreLayout)
 
         if (projectData != null)
         {
-            foreach (var fileName in projectData.MemberList)
+            foreach (var fileName in projectData.FileNames)
             {
-                if (hasLayoutData)
-                {
-                    AddFileTabDeferred(fileName, false, null, true, null);
-                }
-                else
-                {
-                    AddFileTab(fileName, false, null, true, null);
-                }
+                _ = hasLayoutData
+                    ? AddFileTabDeferred(fileName, false, null, true, null)
+                    : AddFileTab(fileName, false, null, true, null);
             }
 
             if (hasLayoutData && restoreLayout)
@@ -1856,8 +1851,8 @@ private void FillToolLauncherBar ()
             'U', 'V', 'W', 'X', 'Y', 'Z'
         ];
         toolsToolStripMenuItem.DropDownItems.Clear();
-        toolsToolStripMenuItem.DropDownItems.Add(configureToolStripMenuItem);
-        toolsToolStripMenuItem.DropDownItems.Add(configureToolStripSeparator);
+        _ = toolsToolStripMenuItem.DropDownItems.Add(configureToolStripMenuItem);
+        _ = toolsToolStripMenuItem.DropDownItems.Add(configureToolStripSeparator);
         externalToolsToolStrip.Items.Clear();
         var num = 0;
         externalToolsToolStrip.SuspendLayout();
@@ -1872,7 +1867,7 @@ private void FillToolLauncherBar ()
                 };
 
                 SetToolIcon(tool, button);
-                externalToolsToolStrip.Items.Add(button);
+                _ = externalToolsToolStrip.Items.Add(button);
             }
 
             num++;
@@ -1882,7 +1877,7 @@ private void FillToolLauncherBar ()
             };
 
             SetToolIcon(tool, menuItem);
-            toolsToolStripMenuItem.DropDownItems.Add(menuItem);
+            _ = toolsToolStripMenuItem.DropDownItems.Add(menuItem);
         }
 
         externalToolsToolStrip.ResumeLayout();
@@ -1924,7 +1919,7 @@ private string SaveLayout ()
         using StreamReader r = new(memStream);
         dockPanel.SaveAsXml(memStream, Encoding.UTF8, true);
 
-        memStream.Seek(0, SeekOrigin.Begin);
+        _ = memStream.Seek(0, SeekOrigin.Begin);
         var resultXml = r.ReadToEnd();
 
         r.Close();
@@ -1940,7 +1935,7 @@ private void RestoreLayout (string layoutXml)
         w.Write(layoutXml);
         w.Flush();
 
-        memStream.Seek(0, SeekOrigin.Begin);
+        _ = memStream.Seek(0, SeekOrigin.Begin);
 
         dockPanel.LoadFromXml(memStream, DeserializeDockContent, true);
     }
@@ -2070,7 +2065,7 @@ private void OnStripMouseUp (object sender, MouseEventArgs e)
     {
         if (sender is ToolStripDropDown dropDown)
         {
-            AddFileTab(dropDown.Text, false, null, false, null);
+            _ = AddFileTab(dropDown.Text, false, null, false, null);
         }
     }
 
@@ -2078,7 +2073,7 @@ private void OnHistoryItemClicked (object sender, ToolStripItemClickedEventArgs
     {
         if (string.IsNullOrEmpty(e.ClickedItem.Text) == false)
         {
-            AddFileTab(e.ClickedItem.Text, false, null, false, null);
+            _ = AddFileTab(e.ClickedItem.Text, false, null, false, null);
         }
     }
 
@@ -2128,7 +2123,7 @@ private void OnSelectFilterToolStripMenuItemClick (object sender, EventArgs e)
                         {
                             //logWindow.SetColumnizer(form.SelectedColumnizer);
                             SetColumnizerFx fx = logWindow.ForceColumnizer;
-                            logWindow.Invoke(fx, form.SelectedColumnizer);
+                            _ = logWindow.Invoke(fx, form.SelectedColumnizer);
                             SetColumnizerHistoryEntry(logWindow.FileName, form.SelectedColumnizer);
                         }
                         else
@@ -2146,7 +2141,7 @@ private void OnSelectFilterToolStripMenuItemClick (object sender, EventArgs e)
                 if (CurrentLogWindow.CurrentColumnizer.GetType() != form.SelectedColumnizer.GetType())
                 {
                     SetColumnizerFx fx = CurrentLogWindow.ForceColumnizer;
-                    CurrentLogWindow.Invoke(fx, form.SelectedColumnizer);
+                    _ = CurrentLogWindow.Invoke(fx, form.SelectedColumnizer);
                     SetColumnizerHistoryEntry(CurrentLogWindow.FileName, form.SelectedColumnizer);
                 }
 
@@ -2276,7 +2271,7 @@ private void OnAboutToolStripMenuItemClick (object sender, EventArgs e)
             TopMost = TopMost
         };
 
-        aboutBox.ShowDialog();
+        _ = aboutBox.ShowDialog();
     }
 
     private void OnFilterToolStripMenuItemClick (object sender, EventArgs e)
@@ -2294,7 +2289,7 @@ private void OnMultiFileToolStripMenuItemClick (object sender, EventArgs e)
     [SupportedOSPlatform("windows")]
     private void OnGuiStateUpdate (object sender, GuiStateArgs e)
     {
-        BeginInvoke(GuiStateUpdateWorker, e);
+        _ = BeginInvoke(GuiStateUpdateWorker, e);
     }
 
     private void OnColumnizerChanged (object sender, ColumnizerEventArgs e)
@@ -2319,7 +2314,7 @@ private void OnBookmarkRemoved (object sender, EventArgs e)
 
     private void OnProgressBarUpdate (object sender, ProgressEventArgs e)
     {
-        Invoke(ProgressBarUpdateWorker, e);
+        _ = Invoke(ProgressBarUpdateWorker, e);
     }
 
     private void OnStatusLineEvent (object sender, StatusLineEventArgs e)
@@ -2414,19 +2409,19 @@ private void OnFileSizeChanged (object sender, LogEventArgs e)
                 }
 
                 var icon = GetIcon(diff, data);
-                BeginInvoke(new SetTabIconDelegate(SetTabIcon), (LogWindow.LogWindow)sender, icon);
+                _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), (LogWindow.LogWindow)sender, icon);
             }
         }
     }
 
     private void OnLogWindowFileNotFound (object sender, EventArgs e)
     {
-        Invoke(new FileNotFoundDelegate(FileNotFound), sender);
+        _ = Invoke(new FileNotFoundDelegate(FileNotFound), sender);
     }
 
     private void OnLogWindowFileRespawned (object sender, EventArgs e)
     {
-        Invoke(new FileRespawnedDelegate(FileRespawned), sender);
+        _ = Invoke(new FileRespawnedDelegate(FileRespawned), sender);
     }
 
     private void OnLogWindowFilterListChanged (object sender, FilterListChangedEventArgs e)
@@ -2466,7 +2461,7 @@ private void OnTailFollowed (object sender, EventArgs e)
                 var data = ((LogWindow.LogWindow)sender).Tag as LogWindowData;
                 data.Dirty = false;
                 var icon = GetIcon(data.DiffSum, data);
-                BeginInvoke(new SetTabIconDelegate(SetTabIcon), (LogWindow.LogWindow)sender, icon);
+                _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), (LogWindow.LogWindow)sender, icon);
             }
         }
     }
@@ -2479,7 +2474,7 @@ private void OnLogWindowSyncModeChanged (object sender, SyncModeEventArgs e)
             var data = ((LogWindow.LogWindow)sender).Tag as LogWindowData;
             data.SyncMode = e.IsTimeSynced ? 1 : 0;
             var icon = GetIcon(data.DiffSum, data);
-            BeginInvoke(new SetTabIconDelegate(SetTabIcon), (LogWindow.LogWindow)sender, icon);
+            _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), (LogWindow.LogWindow)sender, icon);
         }
         else
         {
@@ -2542,7 +2537,7 @@ private void OnReloadToolStripMenuItemClick (object sender, EventArgs e)
         {
             var data = CurrentLogWindow.Tag as LogWindowData;
             var icon = GetIcon(0, data);
-            BeginInvoke(new SetTabIconDelegate(SetTabIcon), CurrentLogWindow, icon);
+            _ = BeginInvoke(new SetTabIconDelegate(SetTabIcon), CurrentLogWindow, icon);
             CurrentLogWindow.Reload();
         }
     }
@@ -2565,7 +2560,7 @@ private void OnDateTimeDragControlValueDragged (object sender, EventArgs e)
     [SupportedOSPlatform("windows")]
     private void OnDateTimeDragControlValueChanged (object sender, EventArgs e)
     {
-        CurrentLogWindow?.ScrollToTimestamp(dragControlDateTime.DateTime, true, true);
+        _ = (CurrentLogWindow?.ScrollToTimestamp(dragControlDateTime.DateTime, true, true));
     }
 
     [SupportedOSPlatform("windows")]
@@ -2767,7 +2762,7 @@ private void OnSaveProjectToolStripMenuItemClick (object sender, EventArgs e)
 
             ProjectData projectData = new()
             {
-                MemberList = fileNames,
+                FileNames = fileNames,
                 TabLayoutXml = SaveLayout()
             };
             ProjectPersister.SaveProjectData(fileName, projectData);
@@ -2814,7 +2809,7 @@ private void OnFindInExplorerToolStripMenuItemClick (object sender, EventArgs e)
         explorer.StartInfo.FileName = "explorer.exe";
         explorer.StartInfo.Arguments = "/e,/select," + logWindow.Title;
         explorer.StartInfo.UseShellExecute = false;
-        explorer.Start();
+        _ = explorer.Start();
     }
 
     private void TruncateFileToolStripMenuItem_Click (object sender, EventArgs e)
@@ -2912,7 +2907,7 @@ private void OnThrowExceptionGUIThreadToolStripMenuItemClick (object sender, Eve
     private void OnThrowExceptionBackgroundThToolStripMenuItemClick (object sender, EventArgs e)
     {
         ExceptionFx fx = ThrowExceptionFx;
-        fx.BeginInvoke(null, null);
+        _ = fx.BeginInvoke(null, null);
     }
 
     private void OnThrowExceptionBackgroundThreadToolStripMenuItemClick (object sender, EventArgs e)