I can't recreate this issue on my phone or other devices so it's rather difficult to resolve. I did however update renpy (the game engine) which brings some updates to android packaging. I also reconverted the animations you're having issues with. Hope this helps.
Make sure you transfer/copy your save files before reinstalling.
https://mega.nz/file/xxJXBYiA#qp1Gj_nzeSXcLLu_6m5wZi-BcJ8eDtTLSwtXucRMKnE
PS. Didn't have time to test this but nothing was changed except for renpy version... so it should be fine.