PlayerController.LevelVisibilityDontSerializeFileName
VarUnreal Engine Var console variable.
PlayerControllerLevelVisibilityDontSerializeFileName
Description
When true, we'll always skip serializing FileName with FUpdateLevelVisibilityLevelInfo's. This will save bandwidth when games don't need both.
Usage
PlayerController.LevelVisibilityDontSerializeFileName [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

