Love this mod. Can't play with out it. Hence the problem... My own mod uses Better BTS AI (and BUG, actually, via some merging) as a base. Basically, all I've done thus far is revamp civics, button graphics, traits, and parts of the tech tree (around the medieval era). All of this works fine. The next thing I wanted to do was revamp units. Part of this included stripping the game of all existing UUs. Unfortunately, this utterly breaks Better BTS AI. The game consistently crashes around Turn 50, no matter what I'm doing. It is not related to a syntactic error on my part, and I know it's a Better BTS AI issue because making a clean mod (Better BTS AI-less) with just my unit changes works fine. Reintroducing Better BTS AI, however, reintroduces the crash. This occurs using JUST BBTSAI too, so it's not BUG. My question is this: why? Is BBTSAI "forcing" the AI to build predetermined units - units that, as per my edits, no longer exist? If so, where is this located (so that I may remove or edit it to prevent crashes)? There are no python errors, no XML errors, etc. upon loading. All graphics are in tact, everything places fine.