After playing that save more, I figured it was corrupted, since nothing I tried worked and the crashing was only getting worse. If you are able to rescue the attached save, that would be amazing. Either way, I appreciate the effort in going after these tricky crashers!

Here are four more with the same save. For me to reproduce it for the first three:
Launch Factorio Click the continue button (since the save is the last one played)
For number 4, I clicked "single player" instead of continuing and then loaded the save from there.

It's rare, but I can sometimes ...

The game consistently crashes when loading the attached "grassland 2" just as the progress bar hits 100% but before the game actually starts. However, when I launch Factorio, load the "solaris" save, and then immediately load the "grassland 2" save, I am able to play without crashes (so far). There ...