Question Black/White Flashing Play Mode - Quest 2

Anyone know of anything I haven't tried that has been suggested that I am missing?
Occulus works correctly with build & run, but not play mode.


Computer (Laptop):
-----------------------------------------------------------
AMD Ryzen 7 5800H (CPU)
64 GB of Ram
Nvidia GeForce RTX 3050 Ti (GPU)
Windows 11
-----------------------------------------------------------

Settings:
-----------------------------------------------------------
- Developer Mode On
- USB Debugging Allowed
- Link Active
- Quest 2 updated (4/27/2023)

- XR Plugin installed
-----------------------------------------------------------

VR Hardware:
-----------------------------------------------------------
- Oculus Quest 2
- With Quest Link Cable (10ft)
-----------------------------------------------------------


Unity Versions Attempted:
-----------------------------------------------------------
- 2021.3.6f1
- 2021.3.23f1
-----------------------------------------------------------

Tutorials Tried:
-----------------------------------------------------------
"How to Make a VR Game Unity - Part 1"

"5 Common Oculus Quest Unity Deployment Issues" -

"Quest Link in Unity" -

"Unity Play Mode in Oculus Quest2" -

"Connecting Oculus to Unity" -

-----------------------------------------------------------

Threads Read:
-----------------------------------------------------------
https://forum.unity.com/threads/oculus-quest-2-screen-flickering-issue-with-urp.1258425/
https://forum.unity.com/threads/unity-play-mode-not-connecting-to-oculus-quest-2.1389171/
https://forum.unity.com/threads/quest-2-flashing-white-and-black-when-in-play-mode.1417041/
https://www.reddit.com/r/OculusQues..._sync_unity_playmode_with_oculus_quest_2_for/
https://circuitstream.com/blog/oculus-quest-2-setup
https://jerhemy.com/article/2021/05/18/unity-oculus-setup/
https://communityforums.atmeta.com/...-between-Unity-and-Ouest-2-in-play/m-p/983537
-----------------------------------------------------------


Results:

In version - 2021.3.6f1
-----------------------------------------------------------
black/white flashing entering Unity play mode from oculus linked home.
This I have OpenXR, for desktop and Android, and Occulus Touch Controller Profile for Interactions.

Unity throws no errors but flashing occurs and then goes back to Oculus Link home with desktop view of Unity.

In version - 2021.3.23f1
-----------------------------------------------------------
black/white flashing entering Unity play mode from oculus linked home.
Tried the OpenXR but throws all sorts of errors and compiling issue.

When I did Oculus option it did flashing then threw this Unity Crash log.

Code (CSharp):

1. Obtained 45 stack frames
2. 0x00007ffd3c03c347 (LibOVRRT64_1) ovr_ReleaseHapticsClip
3. 0x00007ffd3bffc8fd (LibOVRRT64_1) ovr_ReleaseHapticsClip
4. 0x00007ffd0d5880ff (OVRPlugin) ovrp_UnityOpenXR_OnSessionDestroy
5. 0x00007ffd0d581d1b (OVRPlugin) ovrp_UnityOpenXR_OnSessionDestroy
6. 0x00007ffd0d579ec3 (OVRPlugin) ovrp_UnityOpenXR_OnSessionDestroy
7. 0x00007ffd0d57189a (OVRPlugin) ovrp_UnityOpenXR_OnSessionDestroy
8. 0x00007ffd0d561730 (OVRPlugin) ovrp_Initialize7
9. 0x00007ffd5a043917 (OculusXRPlugin) XRSDKPreInit
10. 0x00007ffd5a04a785 (OculusXRPlugin) SetUserDefinedSettings
11. 0x00007ff7df204a35 (Unity)
12. 0x00007ff7df2fe50b (Unity)
13. 0x00007ff7df20133d (Unity)
14. 0x00007ff7dded6fb3 (Unity)
15. 0x0000019859bbf84a (Mono JIT Code) (wrapper managed-to-native) UnityEngine.SubsystemDescriptorBindings:Create (intptr)
16. 0x0000019859bbf71b (Mono JIT Code) UnityEngine.IntegratedSubsystemDescriptor`1<TSubsystem_REF>:Create ()
17. 0x0000019859bbf6cb (Mono JIT Code) UnityEngine.IntegratedSubsystemDescriptor`1<TSubsystem_REF>:CreateImpl ()
18. 0x0000019859bbf688 (Mono JIT Code) UnityEngine.IntegratedSubsystemDescriptor:UnityEngine.ISubsystemDescriptor.Create ()
19. 0x0000019859bbee59 (Mono JIT Code) [XRLoaderHelper.cs:118] UnityEngine.XR.Management.XRLoaderHelper:CreateSubsystem<TDescriptor_REF, TSubsystem_REF> (System.Collections.Generic.List`1<TDescriptor_REF>,string)
20. 0x0000019859bbe383 (Mono JIT Code) [OculusLoader.cs:174] Unity.XR.Oculus.OculusLoader:Initialize ()
21. 0x0000019859bbda97 (Mono JIT Code) [XRManagerSettings.cs:190] UnityEngine.XR.Management.XRManagerSettings:InitializeLoaderSync ()
22. 0x0000019859bbd993 (Mono JIT Code) [XRGeneralSettings.cs:176] UnityEngine.XR.Management.XRGeneralSettings:InitXRSDK ()
23. 0x0000019859bbd873 (Mono JIT Code) [XRGeneralSettings.cs:149] UnityEngine.XR.Management.XRGeneralSettings:AttemptInitializeXRSDKOnLoad ()
24. 0x000001994c198f6d (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void (object,intptr,intptr,intptr)
25. 0x00007ffd461cfeb4 (mono-2.0-bdwgc) mono_jit_set_domain
26. 0x00007ffd4610e764 (mono-2.0-bdwgc) mono_object_get_virtual_method
27. 0x00007ffd4610e8fc (mono-2.0-bdwgc) mono_runtime_invoke
28. 0x00007ff7de912794 (Unity)
29. 0x00007ff7de8f1f94 (Unity)
30. 0x00007ff7de5bb39c (Unity)
31. 0x00007ff7de5c05ef (Unity)
32. 0x00007ff7de60e447 (Unity)
33. 0x00007ff7de60c58a (Unity)
34. 0x00007ff7de60d1d2 (Unity)
35. 0x00007ff7de60dd7b (Unity)
36. 0x00007ff7de611971 (Unity)
37. 0x00007ff7de611f4f (Unity)
38. 0x00007ff7df8232ec (Unity)
39. 0x00007ff7df52b135 (Unity)
40. 0x00007ff7df53afd7 (Unity)
41. 0x00007ff7df53e44b (Unity)
42. 0x00007ff7df99323a (Unity)
43. 0x00007ff7df997b0b (Unity)
44. 0x00007ff7e0d76cbe (Unity)
45. 0x00007ffdf4c7269d (KERNEL32) BaseThreadInitThunk
46. 0x00007ffdf576a9f8 (ntdll) RtlUserThreadStart
47.  

 

To make sure it is not a Meta issue, do released PCVR games work without issue?
If not, it is not an Unity problem.

If that does work, maybe update the OpenXR package to 1.7, or if you use Oculus XR plugin update that to the latest version (check changelog). If you use oculus integration package definitely update that as well.

If that doesn't fix it, try in a blank project with just the XR rig with 1 camera in it (blank scene and go to GameObject - XR - covert main cam to XR Rig)

 

My Quest 2 works with other PCVR games.

I don't know how to find which version of OpenXR I am using, but the version is a fresh install as of today.

I followed the documentation on this page: https://docs.unity3d.com/Manual/configuring-project-for-xr.html
I chose to start with a completely empty scene and followed the instructions exactly.

I received this error (which is given per frame, over 999+ times):

Code (CSharp):

1. CameraOffset.SetupCamera: Attempting to set the tracking space to Device, but that is not supported by the SDK.UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)

I then tried changing the Request Tracking Mode from Default to Floor and got this error:

Code (CSharp):

1. CameraOffset.SetupCamera: Attempting to set the tracking space to Floor, but that is not supported by the SDK. UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)

This message is given when Request Tracking Mode from Default to Device:

Code (CSharp):

1. CameraOffset.SetupCamera: Attempting to set the tracking space to Device, but that is not supported by the SDK. UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)

All with the same flashing...

Camera's current position in scene is (0,0,0) with a rotation of (0,0,0) and a scale of (1,1,1). aka all default with no modification.

This error with these notifications occur on a clean/empty project and scene, where I have followed the configuration instructions for OpenXR from Unity Documentation.

 

How do you setup the player?
I usually just use an XR rig and the settings on there

 

Can you be more specific with "how do I set up the player?" please.
for the XR rig, I have tried to use the default setup in VR Core.

in another project for basic 3D URP I have also put the main camera in root bottom position of hierarchy, tagged it as main camera, and used the option GameObject>XR > convert main camera to XR rig

 

If I can change my prefix on this thread to bug will get it get some potential help from Unity Dev Support?

 

I followed this tutorial trying to resolve the issue. It clears the sdk problem but the Oculus Integration updates then bring it to the stacked frames crash log.

Plenty of people saying this plugin is cursed.
https://assetstore.unity.com/packages/tools/integration/oculus-integration-82022#reviews

 

2021.3.6f1 version. XR Plug-in & Build setting Windows/Oculus
--------------------------------------------------------------------------------------------------------------
Able to complete a successful build without errors, also able to enter play mode without errors.

Build Mode, only displays the skybox and none of the objects into scene after project configuration for VR.
It IS tracking headset movement.

Play mode, flickers black/white, then kicks me back to desktop view of Unity, but displays play mode running in desktop window. It is NOT tracking headset movement.

 

2021.3.16f1. XR Plugin & Build setting Windows/OpenXR
--------------------------------------------------------------------------------------------------------------

Build mode in windows is working properly, build gives some white/yellow warnings. All interactions normal.

Play mode, white flickering, then back to desktop view of Unity. displays playmode running in desktop window.
Following errors given:

The referenced script (Unknown) on this Behaviour is missing!
The referenced script on this Behaviour (Game Object 'Main Camera') is missing!

XR Interaction Toolkit: Interaction Layer 31 is not set to 'Teleport'.
UnityEditor.EditorApplication:Internal_PlayModeStateChanged (UnityEditor.PlayModeStateChange)

Despite going to Layer 31 and naming it Teleport.

 

Still looking for help to get play mode working please!

 

Still haven't found a solution.

 

Same problem here.