Haha, i feel you! hard to fix without a way to reproduce... I'll help with the little info i have!

It crashed from inside freeplay, was moving some stuff around and picked up an item onto my cursor, then at kinda the same time the autosave loader popped up.
My world is really small compared to ...

No sorry, it only happen once and the next time I booted up the game everything was fine(except the 5 min I lost, but i can live with that ).

Hi, the game crashed when trying to autosave, ive included the save file and the dumps/logs.

Hope it helps.