hmmm by the sounds of it, latest Ren'Py version might be lesser compatible with, or more strict with android than previous versions.
then again, noone knows what im(worse)provements gurgle is doing with their updates and patcheroo. one of the reasons why i avoid android phones, and live happily ever after. kinda like, 'if there's a change, tell me what has changed and what it does; if you don't tell, i don't want it.' like so many others, gurgle never tells.
far as i know, Ren'Py devs usually do publish a rather transparent changelog.