Unity Editor freezes on Apple Silicon (M1)

[JanOwiesniak]

Describe the bug

Starting an AR scene (e.g. "ARKit MeshClassificationExample") on the "ARFoundationRemoteCompanionApp" causes the Unity Editor to freeze after a few seconds (usually between 30 seconds and 1 minute).

Attempts to solve the issue so far

1. Added this lines to Packages/com.unity.xr.arfoundation/Runtime/AR/ARCameraBackground.cs as mentioned here

        internal static void AddBeforeBackgroundRenderHandler(CommandBuffer commandBuffer)
        {
            // calling commandBuffer.IssuePluginEvent is crashing Unity Editor 2019.2 and freezing newer versions of Unity
            #if !UNITY_EDITOR
                commandBuffer.IssuePluginEvent(s_BeforeBackgroundRenderHandlerFuncPtr, 0);
            #endif
        }

2. Installed AR Foundation as embedded package via the installer.

Please provide additional info

Does your existing AR project work fine on a real AR device?

Yes. Tested standalone on iOS and works as expected.

Can your issue be reproduced with plugin examples? To import examples into your project, press the 'Installer/Import Samples' button.

Yes. Unity Editor freezes with every tested example from the samples.

Plugin version. You can find it in the 'Packages/AR Foundation Remote/package.json' file.

Unity version and your OS (Windows/macOS/Linux).

Attach your 'Packages/manifest.json' file to this bug report.

manifest.json

{
  "dependencies": {
    "com.kyrylokuzyk.arfoundationremote": "file:../Assets/Plugins/ARFoundationRemoteInstaller/com.kyrylokuzyk.arfoundationremote.tgz",
    "com.unity.collab-proxy": "1.15.18",
    "com.unity.feature.ar": "1.0.0",
    "com.unity.feature.development": "1.0.1",
    "com.unity.ide.rider": "3.0.15",
    "com.unity.ide.visualstudio": "2.0.16",
    "com.unity.ide.vscode": "1.2.5",
    "com.unity.learn.iet-framework": "2.2.1",
    "com.unity.test-framework": "1.1.31",
    "com.unity.textmeshpro": "3.0.6",
    "com.unity.timeline": "1.6.4",
    "com.unity.ugui": "1.0.0",
    "com.unity.visualscripting": "1.7.8",
    "com.unity.xr.arkit": "4.2.3",
    "com.unity.xr.management": "4.2.0",
    "com.unity.modules.ai": "1.0.0",
    "com.unity.modules.androidjni": "1.0.0",
    "com.unity.modules.animation": "1.0.0",
    "com.unity.modules.assetbundle": "1.0.0",
    "com.unity.modules.audio": "1.0.0",
    "com.unity.modules.cloth": "1.0.0",
    "com.unity.modules.director": "1.0.0",
    "com.unity.modules.imageconversion": "1.0.0",
    "com.unity.modules.imgui": "1.0.0",
    "com.unity.modules.jsonserialize": "1.0.0",
    "com.unity.modules.particlesystem": "1.0.0",
    "com.unity.modules.physics": "1.0.0",
    "com.unity.modules.physics2d": "1.0.0",
    "com.unity.modules.screencapture": "1.0.0",
    "com.unity.modules.terrain": "1.0.0",
    "com.unity.modules.terrainphysics": "1.0.0",
    "com.unity.modules.tilemap": "1.0.0",
    "com.unity.modules.ui": "1.0.0",
    "com.unity.modules.uielements": "1.0.0",
    "com.unity.modules.umbra": "1.0.0",
    "com.unity.modules.unityanalytics": "1.0.0",
    "com.unity.modules.unitywebrequest": "1.0.0",
    "com.unity.modules.unitywebrequestassetbundle": "1.0.0",
    "com.unity.modules.unitywebrequestaudio": "1.0.0",
    "com.unity.modules.unitywebrequesttexture": "1.0.0",
    "com.unity.modules.unitywebrequestwww": "1.0.0",
    "com.unity.modules.vehicles": "1.0.0",
    "com.unity.modules.video": "1.0.0",
    "com.unity.modules.vr": "1.0.0",
    "com.unity.modules.wind": "1.0.0",
    "com.unity.modules.xr": "1.0.0"
  }
}

packages-lock.json

{
  "dependencies": {
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      "version": "file:../Assets/Plugins/ARFoundationRemoteInstaller/com.kyrylokuzyk.arfoundationremote.tgz",
      "depth": 0,
      "source": "local-tarball",
      "dependencies": {
        "com.unity.xr.arfoundation": "3.0.1",
        "com.unity.xr.management": "3.0.4-preview.1",
        "com.unity.modules.unitywebrequest": "1.0.0",
        "com.unity.modules.imageconversion": "1.0.0",
        "com.unity.ugui": "1.0.0",
        "com.unity.modules.particlesystem": "1.0.0",
        "com.unity.modules.vr": "1.0.0",
        "com.unity.modules.imgui": "1.0.0"
      }
    },
    "com.unity.collab-proxy": {
      "version": "1.15.18",
      "depth": 0,
      "source": "registry",
      "dependencies": {
        "com.unity.services.core": "1.0.1"
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      "url": "https://packages.unity.com"
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    "com.unity.ext.nunit": {
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        "com.unity.xr.arkit": "4.2.3",
        "com.unity.xr.arcore": "4.2.3",
        "com.unity.xr.magicleap": "6.4.1",
        "com.unity.xr.arkit-face-tracking": "4.2.3",
        "com.unity.xr.openxr": "1.4.2"
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  }
}

Press 'File/Save' in Unity, then attach your 'Assets/Plugins/ARFoundationRemoteInstaller/Resources/Settings.asset' file to this bug report.

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  m_Script: {fileID: 11500000, guid: dd607c3f010ab45a29ecfcf8d5a898ef, type: 3}
  m_Name: Settings
  m_EditorClassIdentifier: 
  ARCompanionAppIP: 192.168.0.81
  arCompanionSettings:
    cameraVideoSettings:
      enableVideo: 1
      syncCameraPoseWithVideo: 1
      resolutionScale: 0.33
      quality: 95
      maxVideoFps: 15
      maxCpuImagesFps: 15
      maxCameraIntrinsicsFps: 1
    occlusionSettings:
      maxFPS: 10
      resolutionScale: 0.33
    faceTrackingSettings:
      maxFPS: 30
      sendVertices: 1
      sendNormals: 1
      sendARKitBlendshapes: 1
    CPUImagePlaneMode: 0
    maxLatency: 0.5
    latencyReduceSpeed: 0.5
    normalLatency: 0.2
    targetFrameRate: 30
  editorGameViewSettings:
    resolutionScale: 0.33333334
    maxEditorViewFps: 10
  packages:
  - displayName: AR Foundation Remote
    version: 2.0.24-release.0
    id: com.kyrylokuzyk.arfoundationremote
  - displayName: AR Foundation
    version: 4.2.3
    id: com.unity.xr.arfoundation
  - displayName: ARCore XR Plugin
    version: 4.2.3
    id: com.unity.xr.arcore
  - displayName: ARKit XR Plugin
    version: 4.2.3
    id: com.unity.xr.arkit
  - displayName: ARKit Face Tracking
    version: 4.2.3
    id: com.unity.xr.arkit-face-tracking
  - displayName: Input System
    version: 1.3.0
    id: com.unity.inputsystem
  - displayName: AR Subsystems
    version: 4.2.3
    id: com.unity.xr.arsubsystems
  inputHandlingData:
    isLegacyInputManagerEnabled: 1
    isNewInputSystemEnabled: 1
  debugSettings:
    logStartupErrors: 1
    showTelepathyLogs: 1
    showTelepathyWarningsAndErrors: 1
    printCompanionAppIPsToConsole: 0
    overrideDisplayMatrix: 0
    displayMatrix:
      e00: 0
      e01: -0.6161137
      e02: 0
      e03: 0
      e10: -1
      e11: -0
      e12: 0
      e13: 0
      e20: 1
      e21: 0.8080569
      e22: 1
      e23: 0
      e30: 0
      e31: 0
      e32: 0
      e33: 1
    overrideProjectionMatrix: 0
    projectionMatrix:
      e00: 3.2722187
      e01: 0
      e02: -0.012225151
      e03: 0
      e10: 0
      e11: 1.5120442
      e12: -0.030026197
      e13: 0
      e20: 0
      e21: 0
      e22: -1.0002
      e23: -0.20002
      e30: 0
      e31: 0
      e32: -1
      e33: 0
    checkPackageVersions: 1
    unityVersionsWithIssuePluginEventFix:
    - 2019.4.37
    - 2020.3.30
    - 2021.2.17
    - 2021.3.0
    - 2022.1.0
    enablePluginInAllBuildTargets: 0
    warnNonEmbeddedImageLibrary: 1
    warnNativeCameraTrackingIsNotSupported: 1
  port: 44819
  embeddedImageLibraries: []

Your AR device model and its OS version. Please make sure your AR device supports ARKit/ARCore and supports a feature you would like to test in the Editor.

Errors, warnings, and stack traces Add all errors/warnings from the Unity Editor and from the AR Companion if any. Please send errors and warnings as text (with all stack traces), NOT as screenshots (you can select all console output by pressing ctrl/cmd+a, then copy it by pressing ctrl/cmd+c). If the Editor is crashing or freezing with the plugin, please attach your Editor.log file immediately after the crash/freeze has happened. You can find the Editor.log file here.

Editor.log

Download here

[KyryloKuzyk]

Hi Jan,

Huge thanks for the detailed bug report! I will get back to you as soon as possible.

Is the Editor.log was captured after the freeze has just happened? Because, unfortunately, there is no indication of a possible freeze.

[KyryloKuzyk]

Can I please also ask you to install the plugin to a fresh project to isolate the issue from other dependencies?

[JanOwiesniak]

Hi Jan,

Huge thanks for the detailed bug report! I will get back to you as soon as possible.

Is the Editor.log was captured after the freeze has just happened? Because, unfortunately, there is no indication of a possible freeze.

Editor.log was uploaded after i force quit Unity Editor.

Can I please also ask you to install the plugin to a fresh project to isolate the issue from other dependencies?

Sure.

Test Setup

1. Created a new Unity Project based on Unity AR Template
2. Installed AR Foundation Remote 2.0 as only dependency
3. Added example scenes, lead MeshClassificationExample scene
4. Installed ARFoundationRemoteCompanionApp via XCode on my device
5. Unity Editor crashed after a couple of seconds

Here is the Editor.log after i force closed Unity.

Editor2.log

[KyryloKuzyk]

So to sum up. The crash is most likely connected to the AR Foundation running on the M1 chip. A similar issue is reported here: https://github.com/Unity-Technologies/arfoundation-samples/issues/994

The same crash is happening on the M1 chip with a new Simulation feature available in AR Foundation 5.0.0-pre.12 (without the AR Foundation Remote plugin installed).

Current workaround: install Unity Editor Intel Edition and run it with Rosetta.

Huge thanks to Jan for helping me out with this! I'll leave this bug report open for now so other customers can find it.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[KyryloKuzyk]

Hi Jan,

Could you please try to update to AR Foundation 4.2.6 or to 5.0.2 and check if the crash on M1 is fixed?

[JanOwiesniak]

Editor still crashes with following setup when staring game mode:

Unity Editor 2021.3.10.f1 SILICON LTS

Cloned AR Foundation Samples 5.0.2

https://github.com/Unity-Technologies/arfoundation-samples/commit/d6b6094f9cf90e4265dea455b12fd27d428fad12

Installed AR Foundation Remote 2.0.27-release.0

Note: Still works with Unity Editor 2021.3.10.f1 INTEL LTS

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[KyryloKuzyk]

Hi @JanOwiesniak

I'm very sorry it took me so long, but I believe I fixed the issue. It was this one: https://issuetracker.unity3d.com/issues/m1-editor-slash-player-freezes-when-calling-getnativetextureptr

Could you please update the plugin to version 1.4.30 or 2.0.30 and tell me if the workaround works for you?

[KyryloKuzyk]

Other customers have confirmed the fix worked for them both on M1 and M2 processors. Huge thanks for helping me to find the issue!