Unreal Engine Issues
Unreal Engine Issues
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
[CrashReport] Mac crash - UE4Editor-Slate.dylib!SMenuAnchor::SetIsOpen()
UE - Platform - Apple - Sep 14, 2017This is a common and longstanding Mac crash that has occurred since at least 4.11 and affected more than 40 users. Users have not provided any descriptions of their actions when the crash occurred ...
FSkeletalMeshMerge::CalculateLodCount calculates minimum LODs improperly
UE - Gameplay - Aug 23, 2016CalculateLodCount tries to bound the output LOD count as at least one (count >= 1), but actually bounds it as no more than 1 (count <= 1). Just need to change a FMath::Min to FMath::Max. ...
Server travel from Shooter Game level Highrise crashes editor
UE - Networking - Nov 17, 2014If a person is on the Shooter Game level Highrse and uses the blueprint node "Execute Console Command" to server travel to any other level the editor will crash. In PIE mode the editor will hang at ...
Enabling bUpdateComponentTransformToRootBone in a GeometryCollectionComponent causes broken particles to appear in the wrong location
UE - Simulation - Visual - Jun 22, 2025Enabling bUpdateComponentTransformToRootBone in a GeometryCollectionComponent causes broken particles to appear in the wrong location. When that flag is true, the moment the GeometryCollection (GC) ...
Lens Flares are appearing in Other Player's Windows
UE - Graphics Features - Jul 28, 2015On a Windows 8.1 Platform with an Nvidia 960 card, Lens Flares when playing with 2 Player's (without a dedicated server) are appearing in the wrong window. So, Player 1 is looking at sun, Player 2 ...
ToString() from a StringTable entry now returns <MISSING STRING TABLE ENTRY>
UE - Editor - UI Systems - Localization - Apr 10, 2024This is a regression from 5.3 that has been fixed in Main (32476819, for 5.5), but needs merging into 5.4. ...
Path Tracer Normals Issue
UE - Graphics Features - Path Tracer - Oct 29, 2025Path Tracing normal maps reflect light differently than Lit, and do not look accurate. Also observed in //UE/Release-5.6, CL: 45232827 ...
LogHttp:Warning: 0000024E4A050880 Response Header Content - Issue with the Survey
Tools - Feb 28, 2017LogHTTP:Warnings are populating in the output log when the editor opens any project in 4.15.1 This is not occurring in //UE4/Main This is not occurring in 4.14.3 Marking as regression WarningsLo ...
Vive Trackpad X and Y always return 0
UE - Platform - XR - Feb 3, 2020Platform-specific input for pad axis in 4.24 leads to missing value in VIVE. in 4.23.1 this is not reproduced. ...