[4.8.0 P3]: VR-Preview not working anymore on Oculus DK2

Hi there,

in 4.8.0 P3 I got no image anymore when I press the VR Preview button. Instead, there is a undistorted mirror window, but DK2 display itself stays black. installed runtime version is 0.6.0.0, DK2 is ready. set to direct mode and and works in other applications as well as in 4.7.6.


If I start game as standalone, it works like before (but I can’t do no debugging anymore and have to save everything and wait 20 seconds each time then, of course).

I also tried to use new enable HMD mode (which hadn’t input/output-pins until now), but that resulted in a crash:

MachineId:09466ED14773200D475C1E8762FE17BF
EpicAccountId:fba125fe5ed14161aba1305f0b491147
Unknown exception - code 00000001 (first/second chance not available)
"Assertion failed: View.ViewRotation == CurrentFrame->CachedViewRotation[eyeIdx] [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Plugins\Runtime\OculusRift\Source\Oc
KERNELBASE
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FOutputDevice::Logf__VA() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:144]
UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:360]
UE4Editor_OculusRift
UE4Editor_Renderer!RenderViewFamily_RenderThread() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\renderer\private\scenerendering.cpp:1328]
UE4Editor_Renderer!TGraphTask<FRendererModule::BeginRenderingViewFamily'::17’::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\public\async\taskgraphinterfaces.h:753]
UE4Editor_Core!FTaskThread::ProcessTasks() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\async\taskgraph.cpp:430]
UE4Editor_Core!FTaskThread::ProcessTasksUntilQuit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\async\taskgraph.cpp:273]
UE4Editor_RenderCore!RenderingThreadMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\rendercore\private\renderingthread.cpp:279]
UE4Editor_RenderCore!FRenderingThread::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\rendercore\private\renderingthread.cpp:380]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]
UE4Editor_Core!FRunnableThreadWin::GuardedRun() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:26]
kernel32
ntdll

UPDATE: There was a update to 4 just now. Preview now works again (but scale is off).

PS: Is this first version with late-latching integrated?
PPS: Isn’t SteamVR-Plugin supposed to work with Oculus DK2, too (I am using Oculus plugin so far).

Problem not reproducible according to OP.