Hmm, it's not happening to me when I test it. It could be something to do with the new mobile control plugin but I'm not sure how that would be affecting it. If you don't mind trying a few things out, I'll run through a few questions and solutions to see if it gets fixed. I'd like to know what the cause of it is incase it happens to others.
Have you downloaded the game before and reinstalled over the old version? It might be that this version requires a clean install.
Have you tried closing out of and restarting the game, or starting a new game? Maybe it just needs to redraw the textures., maybe something got corrupted.
Are you using an older Android device or old version? I did use version 14 when converting the game to an APK so that might be it.
If it's none of those then I'll need your assistance in some trial and error of trying different versions of the game to see what fixes it.
Thanks for letting me know about this and sorry it happened, hopefully we can get it fixed.