Alright known bugs for android builds are freezes sadly I don't have enough knowledge about android ports will need to asks some experts if I can't fix it by monday I will remove the animations from the android build for now
If it works on the renpy emulator on pc but not on some actual android devices IMO without an actual screen shot of the error it will be because hardware acceleration is enabled by default and that Android device has to decode your video format with software codecs.
I made a change for a couple of games ported from PC, I'll look it up.
PS if someone has a hard error post the screenshot.
EDIT: try $ config.hw_video = False
at start of h_sceenes.rpy file, maybe that helps.