Not really… Well, there is SetViewTarget() in the PlayerController but the whole implementation is this:
void APlayerController::SetViewTarget(class AActor* NewViewTarget, struct FViewTargetTransitionParams TransitionParams)
{
if (PlayerCameraManager)
{
PlayerCameraManager->SetViewTarget(NewViewTarget, TransitionParams);
}
}
This is why I asked if your APlayerCameraManager is set. Then again, if you are not deriving from it the default player camera manager should be provided for you and working. (check it anyway just in case)
I doubt that unless you are checking if the camera change works through the UI and the render target. Still, try to isolate the problem by disabling the the part that looks suspicious to you. You know your code best so you should follow your intuition.