OK, just did a number of attempts:
* If I try your save, without Save Scumming and without the fix I've already uploaded to 0.971, it crashes
* If I try with Save Scumming and without fix, I doesn't crash at first, but it will eventually crash once the bugged terrain is selected by RNG (there are 9 possible terrains, so it might take a while)
* If I try with Save Scumming and fix it doesn't crash