Unreal Engine Issues
Unreal Engine Issues
5.6 Skeletal Meshes with Disabled Sections Flicker in Ray Tracing Scene
UE - Rendering - Graphics Features - Ray Tracing - Nov 7, 2025Skeletal meshes with disabled mesh sections will flicker in the Hardware Ray Tracing Scene. Also tested on //UE/Release-5.6, CL:45232827 ...
Brush Clip Affects Surrounding Geometry Beyond the Geometry It Is Applied To
UE - LD & Modeling - Modeling Tools - BSP - Dec 2, 2016Brush Clip affects the surrounding geometry beyond the geometry it is applied to. (*See attached image for clarification) Regression: No ...
UbaAgent in 5.7 depends on qwave.dll, which is not available on Server Core
UE - Core - Cpp Tools - UnrealBuildAccelerator - Nov 19, 2025A licensee runs UbaAgent on Windows Server Core. This worked in 5.5 and 5.6, but broke in 5.7. After some investigation, they found that UbaAgent took a new (hard) dependency on qwave.dll in order ...
Geometry Collection (GC) fragments are affecting the Navmesh in wrong positions
UE - Runtime - Deformable - Dec 6, 2024Geometry Collection (GC) fragments are affecting the Navmesh in wrong positions and the identified cause is wrong indexing. Once a GC breaks, it's fragments, when big enough, are creating islands in ...
When switching versions of UE4 the folder colors do not migrate with the project
Tools - Feb 27, 2015User reports when creating a project and changing the folder colors in 4.6, then opening the project in 4.7/4.7.1, the folders go back to their default color. Users have also reported this happenin ...
Crash converting code project 4.7 to 4.8 ; Array index out of Bounds
UE - Gameplay - Blueprint - Jun 18, 2015Some users are experiencing a crash when converting their project from 4.7 to 4.8. From user reports it appears to be affecting those who have added code to their projects and created blueprints bas ...
Widget Components set to screen space do not render in the correct position with low engine scalability settings after upgrading to 4.8 from 4.7
UE - Editor - UI Systems - Jun 29, 2015I widget component that has been set to show in screen space will not render in the correct position of screen. It will be offset. This appears to happen after a project has been upgraded from 4.7.6 ...
Foliage Instance Static Meshes do not affect the Navmesh
UE - Runtime - Character - Apr 25, 2022Foliage Instance Static Meshes do not affect the Navmesh. I tried changing the Custom Navigable Geometry to 'Yes' & 'Even if Not Collidable' but got the same results. Repro Rate: 4/4 Tested this i ...
Nav Modifier Volume Not Affecting Nav Mesh Until it is Moved
UE - AI - Oct 21, 2016Nav Modifier volumes are not affected the nav mesh until they are moved from their initial placement position. Found in 4.13.1. Reproduced in 4.12.5 and 4.15 Main CL 3163223 This is similar to [Li ...
Destructible meshes always affect navigation regardless of collision
UE - AI - Jan 27, 2016Turning off a destructible mesh's collision will still affect navigation around the destructible mesh Note: This issue is related to [Link Removed]. The workaround for that issue does not apply he ...