Game crashes when reloading autosaves, possibly having to do with low textures

I got a crash in today's release after I'd played a few cycles with it. One of the first thing I had done is turn on lower quality textures.

I tried to reload the autosave and crashed.

I tried to reload the autosave from two cycles ago and crashed.

I tried to reload the autosave from three cycles ago and crashed.

I turned the higher quality textures thing back on.

I tried to reload the autosave from three cycles ago and it worked.

I tried to reload the original autosave and it worked.

If you would like save games I can provide them.