Unreal Engine Issues
Unreal Engine Issues
MakeMaterialAttributes and LandscapeLayerBlend produce unexcepted results for WorldPositionOffset
UE - Rendering Architecture - Materials - Nov 8, 2021For comparison, this issue doesn't seem to occur when recreating the setup with Set Material Attributes/GetMaterialAttributes. It seems isolated to the Make/Break nodes. ...
Physics Assets do not show Z (Blue) axis swing graphic.
UE - Simulation - Physics - Sep 13, 20164.13 Physics Asset graphics shown for swing settings in Physics Assets doesn't show for Z (blue) axis. Regression from 3039270 (4.12.5 Release), found in 3106830 (4.13 Release). ...
Cannot change inherited variable default values through details panel
UE - Gameplay - Blueprint - Aug 19, 2015Child blueprints cannot change the default values of inherited variables. ...
Merging negative-scaled actors breaks materials
UE - World Creation - Worldbuilding Tools - HLOD - Mar 27, 2018Materials are broken when merging a mesh with another that has negative scale Licencee states that bisMirrored in FMeshMergeHelpers::TransformRawMeshVertexData seems to be involved. Does not occur ...
Unable to apply Materials to the chunks of a Destructible Mesh
UE - Simulation - Physics - Jul 31, 2018When applying a second material to a Destructible Mesh it does not texture the chunks of the fractured mesh. The chunks remain the same as base color of the Destructible Mesh. This is issue was re ...
Engine no longer compiles after backporting RHI thread improvements and crash fix
UE - Rendering Architecture - RHI - Apr 24, 2025Unreal Engine 5.4 code will no longer compile after applying both the RHI improvement code changes as described in [Link Removed] and the fix for the crash described in [Link Removed]. The compilati ...
C++ Projects Crash in Mac OS 10.11 El Capitan when No Audio Device is Present
UE - Platform - Apple - Dec 22, 2015This issue has been reported by two different users with very similar circumstances: Both report the editor freezing when trying to compile UE4.10 C++ Projects running Mac OSX 10.11.1 if no audio i ...
Switching a code project created in a source-built Engine to use the binary Engine results in files being deleted from the binary Engine installation
Tools - Nov 18, 2016If a code project is created in an Engine built from source code, and then it is switched to use a binary Engine installed by the Launcher, building the project in Visual Studio will result in numer ...
Draw debug depth priority oddities
UE - Graphics Features - Feb 18, 2020Came across a few oddities with draw debug. DrawDebugSolidBox ignores the DepthPriority parameter and appears to always draw in World. In the screenshot the sphere is drawn on top of the mesh, the ...
BlackboardComponent observer can be called for the wrong key
UE - AI - BehaviorTree - Feb 7, 2023We need to, at least, prevent this by clearing observers when running a new BT using a different blackboard. Must also think that this might affect licensees relying on the current behavior (might h ...