Why does Gamemode's OnPostLogin call Possess in Standalone cause Pawn to call Possessed twice?

Development Programming & Scripting Blueprint
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1

postlogin
postlogin1064×441 81.7 KB

VRpawn
VRpawn802×644 99.2 KB

As shown in the picture, when I call OnPostLogin like this and Possess this Pawn, then the screen will print these

new: BP_JSBSimPlayerController_C_0
oldBP_JSBSimPlayerController_C_0
new: BP_JSBSimPlayerController_C_0

But I can confirm that the OnPossess node in the Controller is only called once.
And I also know that if I connect the Delay node, then only these will appear

new: BP_JSBSimPlayerController_C_0

I’m not sure if you will encounter this. Even if I create a new level and GameMode, this happens. I want to know why.

2

double check your don’t have a pawn set from your world setting and that this pawn bp doesnt have auto possess(or even already present on your level map)

3

Yes, the map is newly created and the Default Pawn Class in GameMode is also None. My VR_Pawn is only created in the picture above. Maybe you can reproduce what I did on your computer. If so, let me know. I would be very grateful.