I tried to reproduce this for a while but was unable to get a reproduction. This makes it difficult to fix. Unfortunately without a reproduction I cannot do anything to fix the issue. If you ever figure out a way to reproduce this please let me know. Thank you.
Summit
Community to discuss Summit, a Lemmy reader for Android.
App (Play Store): https://play.google.com/store/apps/details?id=com.idunnololz.summit
APK: https://github.com/idunnololz/summit-for-lemmy/releases
Patreon: https://patreon.com/SummitforLemmy
Ko-Fi: https://ko-fi.com/summitforlemmy
Website: https://summit.idunnololz.com/
The same thing happened to me yesterday when I was browsing community after community in an instance. The app got very laggy and right before it froze entirely I got the bug. I doubt this is any more useful though, just thought I would mention it anyway.
Thanks for the additional info. It will help narrow down the possible places to look.
Happened again last night but with the comment screen. It doesn't appear to be specifically related to videos.
I unfortunately also don't know how to exactly reproduce this, but if I ever find out, I will let you know!