Unreal Engine Issues
Unreal Engine Issues
Sampling textures with bias in the path of a custom data pin causes derivative operations when avoidable
UE - Rendering Architecture - Materials - Apr 8, 2025Materials that make use of the analytical derivatives path to avoid hardware derivatives can still generate derivative operations on texture samples when the shading model has a custom data pin and ...
WPO bug with Material Layers
UE - Rendering Architecture - Materials - Apr 7, 2025I find that there are a couple of things that influence the artefact If WPO in M_BlendingBug is connected I get an issue with the blending. Removing the opacity input that's passed through the ma ...
External Data Layers content not there when activating game features during runtime
UE - World Creation - Worldbuilding Tools - Data Layers - Apr 7, 2025Crash in GPUMessage.cpp when resetting FSocket when RHI is NullRHI.
UE - Rendering Architecture - RHI - Apr 5, 2025When tearing down a nanite project with the nullrhi active, there is a crash in the FeedbackManager destructor that causes any exit to be unclean. The teardown process causes a crash as the destruc ...
Blueprint asset tabs move around weirdly when you navigate between them with too many open
UE - Editor - Workflow Systems - Apr 3, 2025The "parent class type" text changing size causes the tabs to shift around a lot when you have a lot of them. We need to figure out a better place for this text to avoid the issue ...
Non-Nanite Instanced Static Mesh Collision not showing in collision view
UE - Simulation - Physics - Apr 3, 2025This issue is the same as [Link Removed], but it causes confusion for developers because only Nanite ISM are rendered correctly since UE5. . ...
Editor crash while saving asset during cook operation
UE - Foundation - Data Pipeline - Cooker - Apr 2, 2025It is possible to experience an editor crash in 5.5.4 when the cook process generates a warning that references an asset while the editor is saving. It seems that during a save operation, the code t ...
UAT not considering remote root
UE - Foundation - Cpp Tools - Automation Tool - Apr 2, 2025It seems like WriteFileList (TempStorage.cs) is not respecting the enginePath as set from horde context. _localDir in TempStorage.cs seems to be based off of the RootDir (details here). Proposed ...
Return FGoogleARCoreXRTrackingSystem::OnGetARTexture with YCbCr colour conversion
UE - Platform - XR - Apr 2, 2025Either directly return the converted image (if we need it everywhere), or, convert it in ARUtilities/Materials/M_ScreenSpacePassthroughCamera ...
Datasmith .WIRE Import - Shader name inserted into Material Element Slot
UE - Editor - Content Pipeline - CAD - Apr 2, 2025Can we please implement a feature whereby the shader name applied to surfaces / objects is used for the Material Element Slot? When using Dataprep and replacing the materials using a table, it give ...