ShooterGame Controller Posses between Character and Vehicle cause client travel to new map

Hi, i made add new vehicle in ShooterGame, i want to enter and exit the vehicle.
So in ShooterCharacter, i pressed E he will enter the vehicle by posses the vehicle Pawn, this so far working fine.
But when i exit the Vehicle it make client travel to default map of my project.
I use the Posses() function in PlayerController script on server in getting out or in, only when i posses back the ShooterCharacter it cause this problem.
Anyone have any idea about this ? Is there any special function run when i posses something ?

This problem related to this bug here