Crash occurs when disabling Show > Static Mesh in the Viewport while using Vulkan

UE - Rendering - RHI - Oct 20, 2022

This is a regression. Tested in: //UE5/Release-5.0 CL 20979098 - Crash did not occur. Crash occurs when disabling Show > Static Mesh in the Viewport while using Vulkan. ...

D3D validation error about resources being deleted while in use

UE - Rendering - RHI - Jun 7, 2022

We believe this is a bug in the D3D validation layer, rather than an actual error in our code. We're in touch with Microsoft about it, but I'll make this ticket to track the progress of that investi ...

[CrashReport]libUnrealEditor-RenderCore!FRDGEventScopeOpArray::Execute(FRDGBreadcrumbState&) [RenderGraphEvent.cpp:149]

UE - Rendering - RHI - Jun 6, 2022

Generated from CrashReporter Error Message:Assertion failed: !EnumHasAnyFlags(StencilAccess, AnyCopy) [File:./Runtime/VulkanRHI/Private/VulkanBarriers.cpp] [Line: 439] Only the Stencil being transi ...

FPS drop (present time increase) when moving the editor windows to secondary screens

UE - Rendering - RHI - Apr 29, 2022

The licensee has mentioned that they also see an FPS drop without a second monitor, so this can happen just by separating windows out on the same screen. ...

Objects in the Viewport in QAGame project are displayed in low resolution.

UE - Rendering - RHI - Apr 21, 2022

Repro rate: 3/3 Objects in the viewport in QAGame project displayed  in low resolution. Issue reproduced for precompiled and not precompiled builds. Not reproduced in newly created blueprint third ...

Crash: Device Lost after enabling SM6 within EngineTest and QAGame

UE - Rendering - RHI - Apr 12, 2022

This is marked as a regression as the option to set SM6 within the project setting is new.Testing on NVIDIA as we speak Issue with the same repro steps is not an issue on an NVIDIA 3000 series card ...

Opening Project with MSI Afterburner/Riva Tuner running causes GPU Crashed or D3D Device Removed crash

UE - Rendering - RHI - Apr 5, 2022

When creating or opening any project from Live UE5 binary, the editor will crash.   Fatal error: [File:D:\build\++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Util.cpp] [Line: 859] hr faile ...

[CrashReport]UnrealEditor-D3D12RHI!FD3D12QueryHeap::EndQueryBatchAndResolveQueryData(FD3D12CommandContext &) [D3D12Query.cpp:408]

UE - Rendering - RHI - Mar 14, 2022

Generated from CrashReporter Error Message:Assertion failed: ActiveAllocatedElementCount <= QueryHeapCount [File:D:\build\++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Query.cpp] [Line: 40 ...

HiResScreenshot has incorrect masking when screenshot resolution scale does not match the viewport.

UE - Rendering - RHI - Sep 6, 2021

After a bit of investigation, the way to fix this would be to modify MergeMaskIntoAlpha to pass in the actual resolution scale and the requested size, and only mask the overlapping pixels. Currently ...