I’m a little confused by your answer. I didn’t know that under certain circumstances (like the one you mentioned) proxies might not receive a copy of the controller; however, I don’t see how that affects my problem (from my complete lack of knowledge of corse).
AFAIK, if a cast to node fails, it doesn’t interrupt the code flow and it continues executing, it may play the Cast Failed, but in this case, im not using it. In fact, the characters created with the Spawn AI from Class have a normal behaviour, the cast doesnt fail and the As AIC Enemy Base is working in other parts of the code when used as “get”