I have added many races to my mod (now it has 14 races at all) but I have problem with the last one. I can play with it as with any other, but when I try to abort mission, or when I win the game will crash.
I tried everything I know, but it didn't help.
First of all, which race are you talking about and which mod did you get it form?
Shivan empire. from this mod
solved. I have removed race icon and no more game crash. O.o