I might have spoken to soon. I've gotten the tacbat crashes again. But something occurred to me. Starting around v1.09p, I started purging my Race folder and deleting custom sovereigns before playing a new build. A series of rapid fire versions have been released lately, so it might be the folder purges that allowed me to play the tacbats? So I went and deleted my custom factions and sovereigns and started a new game (creating a brand new custom faction + sovereign). So far I have been able to play every tacbat I attempt. As luck would have it, I had Maggies Quest for both the crashed game and the non-crash. My unit composition was a little different, but not by much. I'd need to run a series of tests to wonder better. But atm I'm wondering if deleting the custom factions and/or custom sovereigns improves performance. If so, what other problems could the docs and settings folders be causing? Is there some sort of leak or bad calls or something happening here? Maybe this is a lead worthy of following?