DG - I've been testing it pretty heavily for EB, and my numbers are different from yours. I can get 8 units into a level 1 MIC (barracks), all have BCs, and right clicking the building does not cause a CTD. Nine or more do.

And then there's this. Three of our factions are immune from the "Right click on unit info in Barracks" CTD. Reason being that their screens do not call up the unit cards. Unfortunately we have no idea what set's them apart.

We know it's not because of culture (other factions with the same culture try to call the cards and CTD), unique units (units CTD for one and not the other), or hidden resources. I realize that's not much to go on, but I'll continue testing and would appreciate any ideas for things to look at as I search for what makes these factions immune. It would be nice to bring BCs back into play again.