I can see that you’re a beta tester, so that might be why you’re seeing that icon at the top for a second. I don’t think it’s directly relevant to this behavior, since it won’t do anything unless it’s clicked.
Since Balanced_Kitchen also sees this behavior, and it not a beta tester, I don’t think it’s an issue with the beta testing server.
@overturner if you open the Thunkable Live listing in the Google Play Store, do you see an update available to download? Or do you have the most recent version of the app downloaded?