Crashing when setting variable - Multiplayer Access Violation reading location 0x00000000000003A0

Development Programming & Scripting C++
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1

I’ve been studying the multiplayer documentation available and been trying to apply it to my game. I’m very early into the whole process I may have misunderstood something.

My game crashes immediately when I launch it in two editor windows (client + server) netmode. One window stays black so I would I be right in thinking this means one player not possessing a pawn at begin play and thus not having anything to set?
On crash VS tells me the crash happens when I set my movement component variable in this code.

void AWRPlayerController::BeginPlay()
{
	Super::BeginPlay();

	
		//Reference casts

		CameraPawnRef = Cast<AWRPlayer>(GetPawn());
		PawnMovementRef = CameraPawnRef->PawnMovement;
	
		//show mouse
		bShowMouseCursor = true;
}

Could someone explain to me what I am misunderstanding here?

Thank you.

2

Just a little more context, I’ve set bReplicates to true, in addition to adding the pawnmovementref to DOREPLIFETIME.

3

Why not break in the code and step through those lines. Step into GetPawn and check if it returns valid value.