Hey bro,
a friend of mine found the solution. it was pretty dump. It was on the oldest and classic problems you can imagine xD
iam pretty sure, cause i have serveal projects with a main menu, where you can setup your graphic settings, that i turned it off once and did not reactivated it and then updated the engine and i thought it was an engine update problem. Everything elese was on Epic, so i wasn’t able to realize it instantly.
anyway, epic fail from my side 
it was just turned off inside engine settings -.-
Edit: closing the thread was a mistake. but not able to reopen it again.
