Heya , it seems it has something to do with incremental saving which I have defaulted on.
for some reason something with the plugin causes the original file to be deleted because it “cannot save over it”. but clearly it saves the incremented save. So really there’s no real problem, except that I’d panicked quite heavily the first time it happened.
Regardless, I have both autosaving and incremental saving on. because i tend to forget to save otherwise.
I tried a similar thing when outside of the plugin and it works fine.
Keep it up!