Every save corrupted

Was building a mega factory in free build mode and I placed a resource importer. The importer slot was the main factory area, upper left side. When I did this the game stopped responding. I’d force quit the game, reboot it, and I’d choose a save to load. No matter what save I chose (literally dozens of them) they all crash the game at the last loading gear. It would appear all my saves are completely corrupt, or that broke the game…