Oh no! Did you ask more people for help on discord? Did you save previous version or use any version control software like git? Let me know if I can help.
Yes, migrating to the development version fixes it apparently. I just don't know if it's a good idea, rather wait until it's stable. I had a backup of the current playable version but it also corrupts when I open it. Time will tell if I can continue working on it.
