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Fixed in 2021.3.14f1, 2022.1.19f1



Found in



Issue ID




Unity 2021.3 / ARF 5.0-pre.12 layout-specific graphics driver crash on Intel MacBook Pro




Using the Menu scene from the ARF Samples project with the following configuration, the Editor crashes upon entering XR Simulation mode if one of the included Editor window layout files is used.  However, a similar layout file is also included; this one enables XR Sim mode to occur without crashing.  

This crash repros consistently, though sometimes the Unity Bug Reporter appears and sometimes it does not.  

This crash does not occur using Unity 2022.2.0b1. It also does not occur on Mac M1.

This crash occurs in pre.12 and pre.13.

See screenshots below, and native stack trace in Editor.log attached. 


+How to See the Bug+

Download the two Editor windows layout files (with .wlt extension); see attached.

Download v5.0.0-pre.12 or v5.0.0-pre.13 version of the ARF Samples project that is located at the [AR Foundation Samples Github page|] and open it in Unity 2021.3.

Load the Menu scene (located at Assets/Scenes/ARFoundationMenu/Menu.unity).

Use the Layout button in the top right corner of the Editor to load crashes.wlt.

Press the Play button to enter XR Simulation mode. 

Unity crashes; this is the bug. 

If you repeat these steps except you load works.wlt instead, then you can enter XR Sim mode without crashing. 



Unity 2021.3.6f1

ARF 5.0.0-pre.12

ARF Samples project, Menu scene with custom layout

Built In RP

Intel MacBook Pro (15-inch, 2019)

MacOS 12.4 


+Layout Screenshots+


This layout crashes: 


This layout works: 



  1. Resolution Note (fix version 2022.1.19f1):

    Closing bug. I have verified that this crash does not occur using:

    Intel MacBook Pro (15-inch, 2019)

    MacOS 12.4

    Unity 2022.1.19f1

    AR Foundation 5.0.0-pre.13

    Built in RP

    AR Foundation Samples, Menu and Simple AR scenes

    crashes.wlt layout

  2. Resolution Note (fix version 2021.3.14f1):

    Crash does not occur using internal build leading up to Unity 2021.3.14f1.

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