[CrashReport] D3D 'Hung' crash - FD3D11DynamicRHI::ReadSurfaceDataNoMSAARaw

UE - Graphics Features - Jan 4, 2017

This is a frequent D3D Hung crash, similar to [Link Removed] and [Link Removed]. A potential fix for the other crashes was released in 4.14.2, but this crash is still occurring on that release. ...

UMG element clipping does not work on Galaxy S8 (Mali)

UE - Platform - Mobile - Mar 13, 2018

UMG clipping requires stencil. Seems like we don't request stencil when creating backbuffer Changing const int EGLMinStencilBits = 0; to const int EGLMinStencilBits = 8; fixes this. ...

PlanarReflectionCaptureComponent preview crash

UE - Graphics Features - Mar 15, 2019

Toggling the Preview Plane boolean for the Planar Reflection Capture Component causes the editor to crash. Tested in 4.22 (CL - 5365847), 4.23 (CL - 5408081) ...

RF_WasLoaded is set to False in PIE for instances of a Blueprint if the Blueprint is recompiled

UE - Gameplay - Blueprint - Apr 5, 2019

The RF_WasLoaded flag is set to false for Blueprint instances in PIE if the Blueprint is edited and compiled. This is fixed by saving the level which is a simple workaround but this should be needed ...

Ray Traced Reflections Get Darker The Higher The Rougness Value is for Metallic Materials

UE - Graphics Features - Lumen - Jun 11, 2019

Instead of reflecting an average color of the surrounding, reflections become black with increased roughness values. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...

SpiralBlur-SceneTexture Does Not Compile If Raytracing Enabled

UE - Graphics Features - Lumen - Jul 22, 2019

The material function SpiralBlur-SceneTexture, does not compile in DX12 mode. Found in 4.22 CL# 7053642, 4.23 CL# 7321677, 4.24 CL #7474192 ...

Tessellated Materials Displayed as 0 in Shader Complexity ViewMode

UE - Graphics Features - Sep 11, 2019

Tessellated Materials Displayed as 0 in Shader Complexity ViewMode. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8588088 ...

Cannot change Collision Profile of BP component instances

UE - Simulation - Physics - Oct 24, 2019

BP instances placed in level cannot have their components' collision profiles modified to anything other than default and custom. Note that this did not occur in 4.22 (after applying the separate ...

[Feature Request] ReferenceViewer: Accept dynamic collection

Tools - Oct 29, 2019

In 4.23, Setting a dynamic collection to the collection filter slot does not display any result. And there are no information about dynamic collection doesn't work in collection filter. (FCollectio ...

USD Stage is not available on Mac and Linux

UE - Editor - Content Pipeline - Import and Export - Dec 17, 2019

On Mac and Linux the option to open the USD Stage window is not there like it is on Windows. This is not a regression since USD Stage was not preset in 4.23.1 (CL-9631420) on any platform. ...