I had installed the 3 parts + 1 patcher for SS 6.3 and then insalled 6.4

I tryed to play an early camp for 6.3 and it work very well .But when i try to start the same camp om 6.4 appear the Loading Screen with 6.4 and after that i recive CTD.Tryed again and nothing

Idk what to do and i posted here