the backup system is really not finished. I am "soft locked" in recovering the fire stone, because I recovered it, turned off the game, and resumed my save in the forest. he considers that I have the stone, but I do not have it, and it is impossible to make it reappear.
Viewing post in Nekomancer - "Slug's Den" update comments
unfortunately, old save files don't work with the new version, I changed too many internal things so old save files only cause unusual bugs. will have to start a fresh game and save.
moving forward i'm gonna prioritize preventing old save files from becoming useless with each new version.
thanks for your post~