Headtracking delay with black bars (framerate however is stable)

Hi,

I have a really weird issue whenever I move my head in VR. Here are two screenshots which show it much better than I could explain it.
Here is what it should look like:


Here is what it looks like when I move my head:


As can be seen in the screenshots, the black borders of the screen move about when moving the head, resulting in black bars appearing in VR. What is even worse is that these seem to update only once every second or so, meaning that if you move your head fast half your vision will be covered by a black bar for about a second before it goes back to normal. The framerate itself is stable however.

I’m using Unreal Engine 4.11.2 as well as the Oculus Rift DK2 and the latest PC SDK 1.3)

I get the same on Gear VR since upgrading to 4.11.2, this didn’t happen in 4.10.4 for me. Would love to know how to fix it!