That's an issue I soon ran into as well; this is also why I said it's best to have a backup save, I wasn't sure if this was stable. I tried to tamper with seeing what's the issue was back then. Part of me believe it's an issue with the "Data.win", Unfortunately I'm not what issue could be since I don't know how to get into contact with the Creator.
I'm not sure if the Creator has a Discord or any other site to communicate with, than again these are copyrighted sprites so at best the creator could only give hints into figuring out how to do it our-selves, so they don't get into trouble. Till than if I do figure out how to fix the problem, I'll give you an update as well as update the post.