UE4.8p3 Oculus Rift DK2 in Standalone Game no longer working

I upgraded my Oculus SDK to 6.0.0. I also upgraded UE from 4.8p2 to 4.8p3 and the rift does not work anymore in “Standalone Game” Mode. I got a blue light on the camera but not on the rift. Tried Direct HMD and Extended destop modes. The game does run on “Stereo off”
“VR Preview” Mode does work. When I try it in 4.7 everything seems to work.
I also tested on a new “First Person Template” Game. I think it is a bug in 4.8p3

Weird… I reinstalled Oculus SDK 0.5.1 and reinstalled 0.6.0 again… I reinstalled UE 4.8p3 again and now it does work…
Duuh… ?!
Problem solved I guess…