VR Preview does not work when MetaXR plugin is enabled in Unreal Engine

Forum|Forum|8 months ago
January 16, 2026
12 replies
1058 views

This issue seems to have started after updating Meta Horizon Link to version 83.0.0.333.349.

At least with version 83.0.0.311.349, developer-specific features (such as passthrough and hand tracking) did not work, but VR Preview itself was functioning correctly.

Current behavior:

When I press VR Preview, the Unreal Engine preview window enters a non-VR state (the camera is fixed at floor level and does not move), and nothing happens on the Meta Quest headset connected via Air Link.

On the headset side, the Link waiting screen (the gray environment) continues to be displayed indefinitely.

Is anyone else experiencing the same issue?

Any information or insights would be greatly appreciated.

Environment:

Unreal Engine 5.5

Meta XR Plugin: 78

Meta Horizon Link: 83.0.0.333.349

Best answer by korinVR

I've managed to fix the problem by deleting HKEY_LOCAL_MACHINE\SOFTWARE\Khronos with regedit.exe.

I suspect there was a conflict with Steam VR or VIVE Business Streaming, which I installed a little while ago.

D

dipRioAuthor

Up and Coming

Update / Additional information:

Sorry, my previous post did not include enough information. Here are some additional details and things I have already checked:

What I have confirmed / tried:

・Runtime OpenXR: Set to Meta. At least according to Horizon Link, it is using Meta as the OpenXR runtime.

・Reinstalling Horizon Link: Tried it, but it made no difference.

・Restarting both PC and Quest headset: No effect.

・Plugin location: I moved the MetaXR plugin from the project’s Plugins folder to the Marketplace directory. This also made no difference.

・Switching XR API to Epic Native: This only results in VR Preview being completely unavailable.

・Disabling MetaXR: Yes — when using OpenXR alone, VR starts and works normally.

Q

qwj2026

New Participant

I encountered the same problem

korinVR

Honored Contributor

I might be encountering the same problem with Unity.

Starting a few days ago, my Unity project can't enter VR mode with the Meta XR feature group enabled. Disabling "Meta XR" works, but then the Touch controllers don't work.

My environment is:
Unity 6000.2.10f1
Meta XR Core SDK 77.0.0
Meta Horizon Link 83.0.0.333.349

Katsuomi Kobayashi ( @korinVR ) at FrameSynthesis Inc.

D

dipRioAuthor

Up and Coming

Ultimately, this is a Meta Horizon Link issue, not a UE issue. I guess I'll just have to wait for an update...

L

LinkAJ

New Participant

Same here, this plugin is driving me insane

I'm just trying to use Passthrough in Unreal

D

dipRioAuthor

Up and Coming

I updated to v85, but has anyone been able to fix these issues?

VRPreview still doesn't work when using MetaXRPlugin, and even using the standard OpenXR VRPreview causes the headset screen to go black (though this may be a personal issue).