Start chat - List does not scroll to the top after adding a few users to group

[lanitochka17]

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Version Number: 9.0.84-1
Reproducible in staging?: Y
Reproducible in production?: N
If this was caught on HybridApp, is this reproducible on New Expensify Standalone?: Y
If this was caught during regression testing, add the test name, ID and link from TestRail: N/A
Email or phone of affected tester (no customers): applausetester+110106kh@applause.expensifail.com
Issue reported by: Applause - Internal Team

Action Performed:

1. Launch ND or hybrid app
2. Open FAB > Start chat
3. Scroll down the list
4. Tap Add to group on any user
5. Scroll down and tap Add to group again
6. Scroll down and tap Add to group again

Expected Result:

• When app scrolls up after tapping Add to group, the contact will be instantly marked with a checkmark
• In Step 6, after adding third member to group, app will scroll to the top of the list

Actual Result:

• When app scrolls up after tapping Add to group, app takes some seconds before the contact is instantly marked with a checkmark (on Expensifail accounts)
• In Step 6, after adding third member to group, app does not scroll to the top of the list. It only scrolls up to show two selected members. User will have to scroll up to show the third user

Workaround:

Unknown

Platforms:

Which of our officially supported platforms is this issue occurring on?

• Android: Standalone
• Android: HybridApp
• Android: mWeb Chrome
• iOS: Standalone
• iOS: HybridApp
• iOS: mWeb Safari
• MacOS: Chrome / Safari
• MacOS: Desktop

Screenshots/Videos

Add any screenshot/video evidence

Bug6712076_1736627825406.ScreenRecording_01-12-2025_04-31-44_1.1.mp4

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[melvin-bot]

Triggered auto assignment to @blimpich (DeployBlockerCash), see https://stackoverflowteams.com/c/expensify/questions/9980/ for more details.

[melvin-bot]

💬 A slack conversation has been started in #expensify-open-source

[github-actions]

👋 Friendly reminder that deploy blockers are time-sensitive ⏱ issues! Check out the open `StagingDeployCash` deploy checklist to see the list of PRs included in this release, then work quickly to do one of the following:

1. Identify the pull request that introduced this issue and revert it.
2. Find someone who can quickly fix the issue.
3. Fix the issue yourself.

[ishpaul777]

most probably coming from this PR #54994

[daledah]

I think this is not a regression, but indeed a different bug, as this bug appears on workspace invite page as well:

Screen.Recording.2025-01-13.at.14.15.04.mov

And my PR only apply changes to new chat page.
I can't reproduce the first bug though.

[dukenv0307]

@lanitochka17 @blimpich

I can't reproduce the first bug

When app scrolls up after tapping Add to group, the contact will be instantly marked with a checkmark

Can you check with WS invite page?

In Step 6, after adding third member to group, app will scroll to the top of the list

This issue happens for other pages as well, and I don't think it's an actual bug. Let's assume we have the very long selected list, users expect to see the latest added users (not the first one).

[Beamanator]

Added my comments in slack, In my opinion we should call this NAB - for similar reasons above.

FYI i believe the scroll / checkmark lag are due to applause's super high traffic accounts