When changing the name or moving the location of a custom game mode blueprint that is set as the "default game mode" in project settings, the default game mode is reverted back to the prior game mode. The custom game mode is still shown as the default game mode.

Steps to Reproduce
  1. Create a project
  2. Create a custom gamemode blue print (customize the gamemode to use a controller that does not allow input.) 
  3. In project settings>maps and modes, set the default game mode to your custom gamemode
  4. Play the level to make sure you can not move and your custom game mode BP is being used, then end play.
  5. Rename or move the game mode blueprint to another location
  6. Play the level and move around.
  7. Check the default game mode in project settings to see it still shows your custom game mode as being used.


Results: The default game mode reverts after moving or renaming the custom game mode blueprint, but still appears in the as the default game mode under Project Settings > Maps and Modes

Expected:  The game mode to remain after renaming or moving the blueprint to another location.

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ComponentUE - Gameplay
Affects Versions4.
Target Fix5.0-m6
Fix Commit15475421
Main Commit15475421
CreatedSep 27, 2019
ResolvedFeb 19, 2021
UpdatedApr 28, 2021
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