Let me give you some more information about my deck and this issue:
- 270+ cards in the deck, most of them with video, or audio materials
- deck was created and have been updated with 2.1.33 version
to reproduce a bug you need
-open deck
-go through 10-30 cards
result:
once you opened the next card with video,
-the player freezes
-the app stops responding
-the only way to stop the app: kill the process
ps
Sorry, I can’t record a video for you, because I already installed the old version. 
pss
developers need to rename/delete buttons in the new version because they are doesn’t work anymore
