I was testing performance in Gear VR and basic test scene with single static mesh. The mesh looked fine in the Editor, but on the device it had missing triangles. So I wanted to take screenshots (in addition to sharing project) and show them to Oculus.
Here is my Blueprint setup for taking automatic screenshots: http://s30.postimg.org/5u9p7vnz3/autoscreenshot2.png
It works wonderfully on Windows when running test project in the Editor, but this is what I get when running on the device: http://s22.postimg.org/g3xeng5q9/Screen_Shot00000.png
I am using Galaxy S6, Android 5.1.1 and Gear VR.