Did you include an apk file? I don't recall installing via exe to Android last update.
Viewing post in Public release of 0.51 comments
Thank you. How far in are you? In the early parts of the game I used to always just add the sound effects in renpy, alongside the animations. Which means they weren't properly sync'd. In most of the newer stuff the SFX is built into the animations so should be synced (although, for some of those animations I just added SFX to the silent animations, whereas others were generated with native audio built in). My sound editing skills are not exactly top tier, so it's really only those animations with native audio that should be properly synced (e.g. all the stuff added in this last update for Heidi's event).
OK, that is strange, those were all created with native audio and renpy strictly binds the audio to the fame it is played on (which is why using mute blocks the video from playing at all if it has native audio). I've had a brief look into it and I've accidentally already done all the things the guides say to prevent this happening (using fixed frae rates, converted to webm format, opus audio codec, specifed audio channel in renpy). The only thing that stood out as a possibility is apparently blue-tooth headphones/speakers can sometimes cause a delay, you aren't by any chance using those are you?