Hey guys, this is an engine bug, it can be resolved by apply the changes listed in the commit for this:
here is the changes:
https://github.com/EpicGames/UnrealEngine/commit/c6d2318f6476533f86f845b79dc0903c2c55400e?diff=split
I have tested it and applied to my engine and its working a okay now.
You are out of luck if you cannot do that unfortunatly.
Good luck!