I found a bug while playing the recent version V20.03.02 PC
It is when collecting monster girls. When you get over 30 blue slimes it restarts to zero... but they never re-appear in the wild so it becomes difficult when your hunting resources.
BTW i love your game. I have restarted it like 4 times! Playing different ways. Never reached the ending as i find more convenient ways to play. I would love to own my own copy.