Unity Issue Tracker - [OpenXR] [DX12] [HDRP] Editor crashes on Unexpected null accessor on Buffer after entering Play mode

Won't Fix

Votes

6

Found in

2020.3.35f1

2021.3.6f1

2022.1.8f1

2022.2.0a18

2023.1.0a1

2023.2.0a1

2023.3.0a3

Issue ID

UUM-2883

Regression

No

[OpenXR] [DX12] [HDRP] Editor crashes on Unexpected null accessor on Buffer after entering Play mode

Jun 01, 2022

Reproduction steps:
1. Open the attached project ("HDRP_VR_Test.zip")
2. Open the SampleScene
3. Set SteamVR as OpenXR default runtime
4. Enter Play mode

Reproducible with: HDRP 10.7.0 (2020.3.24f1), 12.1.1 (2021.2.4f1), 13.1.1 (2022.1.0a16)
Not reproducible with: 2019.4.33f1 (OpenXR is available from 2020.3)

Stacktrace:
...
d3d12: failed to create a buffer of size 12
BufferD3D12 : Unexpected null accessor on Buffer
Crash\!\!\!
...
ERROR: SymGetSymFromAddr64, GetLastError: 'The specified module could not be found.' (Address: 00007FF60A508FA1)
0x00007FF60A508FA1 (Unity) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF60A508411)
0x00007FF60A508411 (Unity) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF60DAB7F27)
0x00007FF60DAB7F27 (Unity) (function-name not available)
...

Resolution Note:

Could not reproduce the issue.

Comments (2)

xNodKane

Nov 01, 2023 10:31

found it in Unity 2023.1.18f1 aswell.

Error:

d3d12: CreateResource for buffer failed.
d3d12: failed to create a buffer of size 180
BufferD3D12 : Unexpected null accessor on Buffer
Crash!!!
Arnold_2013

Oct 31, 2023 09:01

I am getting a similar crash in my main URP project (2022.3). But fail to reproduce it with a simple project, which would be useful for a bug report.
Is there any special setup (VFX graph, Shadergraph, pipeline asset, ...) in this project?
Or is it already reported elsewhere for URP? I searched the forum, but did not find a post about this.

Thanks

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