I can't show the BUG/Glitch (the Top of a Room moves down for a few seconds) on-screen, as it happens Temporarily every so often.
All I can provide is what I've given before (I play TRS Online, on a Chromebook, and it happens in all four directions).
I did a Gemini search the other night about it though, and I can give what it had to say (surprisingly good feedback, considering it's AI!) about this TRS BUG. I'd have to check that Thread on my Cellphone to re-read it though. Let me know if you'd like that information, as it'll Definitely be quite helpful in getting a solution, since it's very detailed!
EDIT: If I get time, I'll try to see what I need to install something to record my screen, then I'll be able to record as I play a TRS Game. I'll then upload it, because I GUARANTEE THE BUG WILL HAPPEN BEFORE LONG! (Owltears has also confirmed it in one of his posts to me not long ago.)