MRKT3 pre.16 crashes in Unity 2021.3.21f1

[LocalJoost]

This issue has been migrated a new MRTK repository, and the status of this issue will now be tracked at the following location:

• MRKT3 pre.16 crashes in Unity 2021.3.21f1 MixedRealityToolkit/MixedRealityToolkit-Unity#91

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Describe the bug

MRKT3 pre.16 crashes in Unity 2021.3.21f1

To reproduce

Steps to reproduce the behavior:

1. Get repo https://github.com/LocalJoost/CrashRepro
2. Open in Unity 2021.3.21f1
3. Build C++ solution for UWP
4. Open in VS2022 (17.5.3)
5. Deploy to HoloLens (Master/ARM64) using Visual Studio
6. Start app on HoloLens
7. App shows rotating orbs, then crashes
8. Downgrade project to Unity 2021.3.16f1
9. Repeat steps 3-56
10. App runs normally

Expected behavior

App should not hang even when built with 2021.3.21f1

Target platform (please complete the following information)

• HoloLens 2

Additional context

Add any other context about the problem here.

[marlenaklein-msft]

The HL crash may be due to a bug in the Unity input system package. Does the project use an InputSystem version <1.5.1?
(I can't see any code in the linked repo).

[LocalJoost]

That is correct, because there IS no code. It's only a scene with a cube. Assuming you mean com.unity.inputsystem, it says 1.4.4

[AMollis]

@LocalJoost the repo only has a LICENSE file. At least that's all I'm seeing

[LocalJoost]

My bad. I use TortoiseGit, and it remembers the last setting. In the previous repo I worked on I committed, but did not push. I did not check before committing the CrashRepo. So I committed - but did not push. This has been fixed. There should be code in it now

Going to hide under a rock now ;)

[shaynie]

Hi @LocalJoost, I believe the crash you are seeing is the StackOverflow crash during device initialization that was fixed in the com.unity.inputsystem 1.5.1 package. Could you please try upgrading the input system to 1.5.1 or greater? Thanks!

[AMollis]

@LocalJoost , @shaynie is correct, this is a stack overflow introduced in Unity 1.5.0 input package. Unity automatically upgrades to 1.5.0 in 2021.3.21.

Here's the MRTK bug that was tracking this issue

• Input System 1.5.0 Stack Overflow Crash #11421

@shaynie / @marlenaklein-msft, should we update MRTK3's min version of com.unity.inputsystem 1.5.1 to avoid this problem in the future?

[marlenaklein-msft]

I think this is a good idea

[AMollis]

@LocalJoost I'll repurpose your issue to upgrade MRTK's min input system version.

[AMollis]

Upgraded our min version to 1.5.1 to avoid people hitting this in the future

[hummlj]

Hi, I'm experiencing the same issue with MRTK3 pre. 16, Unity 2021.3.27f1 LTS, Unity Input System 1.6.1, VS2019(16.11.26), Release ARM64, and the well known "3D Object > Cube" setup check... But works with VS2022(17.6.3)