Hey, I was playing the android version and noticed that all of the buiding tiles has some transparent lines.
It happens on all the maps i visited.
I don't know if it is my device, but this never happened in other RPGMaker games. 
Viewing post in Bug Reports
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.
Ok, I just uploaded another version that just uses Version 12. Not sure if it's going to matter. I did find another user on the RPGMaker forums having the same problem a month ago and it seems to have to do with a core plugin. If it still doesn't work, then the last thing I'll try is updating everything in the game tomorrow. If none of that works then I'm not sure I'll be able to do anything about it. Hopefully it doesn't come to that.
I'm gonna make the old version of the game available to download again and let me know if it does the same thing because I know for sure that that one didn't have that problem. At least that way I can know whether it's something to do with the game or your phone. I'll try updating everything in the game later when I get the time.
Huh, that's... weird. Have you modified your screen resolution or modified the hardware/software of it at all? You said other RPG Maker games ran on it before, do you know if they were made in RPGMZ or RPGMV? It may just be that if your phone is old then compatibility hasn't been maintained with the plugins in the game.
You could also try installing JoiPlay and see if that fixes it. I've never used it but someone did mention to me before that the game ran fine for them using that (It was before I released a working Mobile version). I believe it uses the Windows version of the game but I'm not sure.
If JoiPlay ends up working then I can upload a version of the game that has mobile controls for the windows version, assuming that's the version it uses.