# UE5 Crash when building lighting on default VR Template

**URL:** <https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772>\
**Category:** XR Development\
**Tags:** unreal-engine, Cooking-Failed\
**Created:** [April 16, 2022, 7:10pm UTC](https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772 "2022-04-16T19:10:28Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![anonymous\_user\_118be470](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_118be470](https://forums.unrealengine.com/u/anonymous_user_118be470)\
**Post date:** [April 16, 2022, 7:10pm UTC](https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772/1 "2022-04-16T19:10:28Z")

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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?

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**Author:** ![maxbrown](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/maxbrown/32/1194506_2.png) [@maxbrown](https://forums.unrealengine.com/u/maxbrown)\
**Post date:** [April 16, 2022, 7:47pm UTC](https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772/2 "2022-04-16T19:47:26Z")

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Its a bug, its confirmed so hopefully it will be fixed in 5.1  
See [Unreal Engine Issues and Bug Tracker (UE-148100)](https://issues.unrealengine.com/issue/UE-148100)

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**Author:** ![anonymous\_user\_118be470](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_118be470](https://forums.unrealengine.com/u/anonymous_user_118be470)\
**Post date:** [April 16, 2022, 9:17pm UTC](https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772/3 "2022-04-16T21:17:09Z")

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

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**Author:** ![Gigglebooster00](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Gigglebooster00](https://forums.unrealengine.com/u/Gigglebooster00)\
**Post date:** [April 27, 2022, 3:10pm UTC](https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772/4 "2022-04-27T15:10:23Z")

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

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**Author:** ![NightWolf7578](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@NightWolf7578](https://forums.unrealengine.com/u/NightWolf7578)\
**Post date:** [May 20, 2022, 6:41pm UTC](https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772/5 "2022-05-20T18:41:54Z")

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

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**Author:** ![anatailacc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anatailacc](https://forums.unrealengine.com/u/anatailacc)\
**Post date:** [September 2, 2022, 3:08pm UTC](https://forums.unrealengine.com/t/ue5-crash-when-building-lighting-on-default-vr-template/530772/6 "2022-09-02T15:08:39Z")

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This works for me THANKS
