GC stalls when loading a level with an Oculus HMD connected to the PC

XR - Mar 26, 2020

Check the log. The GC is stalled on IsReadyForFinishDestroy for about 30 seconds. This is mixed with ovrp_WaitToBeginFrame. ...

Oculus Touch Menu Button Input Not Received When Set In Action Mapping

XR - Mar 9, 2020

The left menu button on Oculus Touch doesn't have it's input received when it is assigned to an action mapping. This looks like it stopped working after SteamVR was integrated into the engine. Foun ...

Handheld AR On IPad Has Dark Contrast Issues And Constant Screen Tearing When Mobile HDR Is Disabled

XR - Mar 4, 2020

When MobileHDR is disabled in a packaged AR project for iOS there is a big constrast with the brightness in the image and constant screen tearing. This is happening specifically with images captured ...

SteamVR turns off vsync globally

XR - Feb 21, 2020

Additional Info From User: Result: Vsync will get turned off by FSteamVRHMD::Startup() setting a global console variable, regardless of your project configuration. Expected: Vsync is only deacti ...

Steam VR - Wrong Key returned on Action Mapping

XR - Feb 17, 2020

VR InputAction returns wrong Key. Did not reproduce with Rift Confirmed in 4.26 MAIN @ CL 11451261 ...

Skybox not rendering in packaged project with Vertex Fogging enabled

XR - Feb 10, 2020

Vertex Fogging setting causes skybox material on large skybox mesh to not be rendered. Confirmation for 4.25 blocked by UE-86577 ...

Get Input Key Time Down - Missing inputs from VR input refactor

XR - Feb 7, 2020

Blueprint node 'Get Input Key Time Down' does not reflect new inputs created during VR input refactor. Workaround: Promote Key to variable  Confirmed in 4.25 MAIN @ CL 11289608 ...

VR PIE preview - output does not resize when window is scaled

XR - Feb 3, 2020

VR PIE output no longer resizes when window is scaled. Confirmed with Rift and Vive Confirmed in 4.25 MAIN @ CL 11196267 ...

Vive Trackpad X and Y always return 0

XR - Feb 3, 2020

Platform-specific input for pad axis in 4.24 leads to missing value in VIVE. in 4.23.1 this is not reproduced. ...

No alpha to coverage for ES3.1 and mobile Vulkan

XR - Jan 29, 2020

MSAA is not applied to masked textures/materials. Testing blocked in MAIN 4.25 @ CL 11144351 by UE-86577 ...