[2020] always the same problem

When you can no longer get a world loaded in 99% it's one of two cases:
- Corrupted mods -> Delete mods folder, repair game
- Corrupted savegame due to exiting ungracefully -> Restore backup

Well, then it's likely option 2. Without providing logs we cannot do anything about it.

I'm not quite sure what you mean? "Restore the fuse"?