Running the InteractiveSampleUWP throws exception

[mscherotter]

Running the InteractiveSampleUWP, I've set the CLIENT_ID, INTERACTIVE_ID, and SHARE_CODE, but when running it, I get an exception on startup at frame.cpp line 713.

InteractiveSampleUWP.exe has triggered a breakpoint. occurred

Any suggestions?

[mscherotter]

Looking in more detail, the issue is that the call to interactive_auth_get_short_code() return 400 - with the body error=invalid_client
I am using the client ID from the page https://mixer.com/lab/oauth.

Please advise.
Thanks,
Michael