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. . ...
Actor Dropped at Wrong Location During PIE
UE - Editor - Applied Usability - Apr 3, 2025When attempting to drag and drop an actor from the Content Browser into the level viewport during PIE, the actor is not placed at the mouse cursor location if the Player Controller is attached. Inst ...
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 ...