Hey there buddy! Haven't found a fix, but I did more experimenting, and the less mods I have, the less likely I am to encounter the crash. It seems more likely to occur when I am using more game memory. Setting my files up again from scratch seems to help, but my best guess is that this is a general issue with the game running out of resources, and isn't caused by a conflict from one specific mod. The reason I believe this is because I can somewhat reliably produce this by spawning in a crapton of backup units XD