Glad I could help. It might be that you are not setting maps and modes correctly. Look at the packaging settings in my sample project and make sure you are setting the correct game mode for each maps you are using. The spectator pawn doesn’t have any controls attached to it, it will only track a set pawn. When they first join the game they will possess a VR pawn but by pressing T they possess a spectator pawn, disable stereo rendering and destroy their old pawn.
Also, you probably have your movement controls written in your own PlayerController class, make sure you are using your controller and add my code to it. The only class you are probably going to use from my sample project without any modification is the Specator class.