UE5 Crash when building lighting on default VR Template

Development Platform & Builds XR Development
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1

I have a Intel core i9 with 64GB RAM and an RTX 3090 graphics card.

I load the default VR template, import a simple model into it, and attempt to build lightning. NO changes to any settings, no additional lights, nothing other than a new figure imported from DAZ.

UE5 consistently crashes with the following:

“Assertion failed: CurrentGPUVirtualAddress != 0 [File:D:\build++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12DescriptorCache.cpp] [Line: 729]”

I have another machine with two graphics cards (RTX 3080 and Titan RTX), same thing happens – same error.

I’ve been using UE4.27 successfully for several months, and even UE5 EA doesn’t have this problem for me.

Any suggestions?

2

Its a bug, its confirmed so hopefully it will be fixed in 5.1
See Unreal Engine Issues and Bug Tracker (UE-148100)

3

Thank you for your quick response… bummer, but glad it’s being fixed.

4

Ugh this has been an issue for months since the UE5 preview versions, kind of surprised this still hasn’t been fixed…

5

Changing the RHI to default under Platforms - Windows in the project fixed the issue for me.

4 Likes
6

This works for me THANKS