Thank you for this plugin, it's wonderful! I used this plugin for my game Lawmage Academy and I think I figured out what's causing the save bug with save files disappearing. The details are as follows:
I deployed my game in Steam and Itch. My save plugins were Yanfly save core...
My washing machine is a supernatural being. I lost a piece of clothing in there a month ago; searched up and down, inside other clothes, nothing. It just vanished.
Today, put in a new load. When I pull it out, the missing clothing is back! And a sock was sacrificed in the process