Open Level not working on launch or when packaged

The game runs fine in the editor, however when launching it to the device (galaxy s6) opening a level doesn’t seem to be working, this also happens when packaged and installed using the bat (compression ETC 1). I have tried editing the DefaultEditor.ini to include:

[AlwaysCookMaps]
+Map=/Game/MobileGame/Maps/Start
+Map=/Game/MobileGame/Maps/MainMap
+Map=/Game/MobileGame/Maps/GameOver

This however also has not fixed the problem.

the same problem

same here.