Here is a little update: I relaunched the game, and the autosave is not crashing anymore, maybe it was an isolated case.

I was not doing anything special when it crashed: just running back and forth to restock Yumako and Jellynut while crafting by hand biochambers...

I was chilling in Gleba, well, not exactly chilling but rather trying to figure out how to automate iron and copper production, when the game crashed while autosaving.
I dunno if the bug has been reported yet, but you will find everything you need in the attachements.

I hope you will find the ...