I just want to say to everyone, thank you for taking the time in looking into my problems and trying to help me.
I intended to make this game semi RTS where I can control multiple characters. Right now I can click and drag PW_Character blueprints into the level as many times as I want and I am able to click and move them one by one. There is no PlayerStart on my level. I just clicked and dragged the PW_Character blueprint to the level, I suspect that’s the root cause of my problem. Do you have any suggestions how to continue and be able to cast PW_Character in the PW_AiController or in any blueprints for that matter?