There's a persistent error occurring during the brown company's turn. I've attached the save file and log.
I don't think I've done anything unusual; it's just a standard random map, and it won't let me finish any of them lately.
I've tried various tweaks to bypass the errors, but they didn't help. I reset the settings to default.
I haven't installed any additional mods; it's a clean version "out of the box" with the latest HD 5.4 R40 (WoG) updates.
P.S. Yesterday, I encountered a similar crash while taking my own actions, so it might be the same issue.
I used a dimension door, ended up on these mushrooms as shown in the attachment. The door worked, but then the game crashed immediately.