Unreal Engine Issues
Unreal Engine Issues
Color picker widget auto-closes unnecessarily
UE - Editor - Aug 3, 2026A licensee reports that the color picket widget in Unreal Editor closes whenever a blueprint actor (map placed instance of an actor blueprint) receives a property changed event, even if the change e ...
Bone names of ~100 characters or longer crash the editor when baking to control rig
UE - ACT Character - Control Rig - May 15, 2025This is an issue with inconsistencies over rig names and how control names are generated. We expect that a control name will be appended with _CONTROL or _CURVE_CONTROL. But because URigHierarchy: ...
Unexpected behavior from moving multiple widget components with render transform
UE - Editor - UI Systems - May 10, 2017Unexpected behavior occurs from moving multiple widget components with render transform applied to them. The individual components seem to change relative position or rotation when being clicked and ...
Unreal Remote 2 does not send information about motion control
UE - Platform - Mobile - Aug 25, 2018Unreal Remote 2 does not give information on motion control to PC. This is different from the description of the application. Use this application alongside Unreal Engine to view and control the de ...
Possession is not replicated properly to some clients
UE - Networking - Nov 8, 2018A user has reported an issue where Possession replication or Character Movement replication, unsure of which, is not working properly for some clients. It seems to work fine for the first client but ...
NormalizePackageNames() should interpret 'exclude developer folders' to also exclude packages in ExternalActors and ExternalObjects
UE - Core - Systems - Oct 14, 2022In NormalizePackageNames() (PackageUtilities.cpp), there is a PackageFilter parameter, which can be set to exclude developer packages (NORMALIZE_ExcludeDeveloperPackages). The code only checks the b ...
Volumetric clouds are jagged along mesh edges when Fog Height Falloff is 0
UE - Rendering - Jul 27, 2026Volumetric clouds are composited against opaque mesh silhouettes at a reduced resolution. A blocky and jagged edge appears along the silhouette. The fog brightness of the clouds also changes abruptl ...
Subsurface Profile Materials That Are Illuminated By Particle Lights Render White
UE - Graphics Features - Feb 9, 2017Due to the changes made to subsurface profile (implementation of full resolution skin shading) it now renders white or with heavily faded base colors under certain conditions. In this case it is wh ...
Check() crash in merge tool when using SVN
UE - Gameplay - Blueprint Editor - Oct 21, 2015A UDN user found a crash in the merge tool when using SVN. https://udn.unrealengine.com/questions/265740/crashbug-with-svn-merging.html The failing check() crash occurs in LoadBaseRev (Merge.cpp): ...
Bloom Blown Out In Forward Shading With MSAA and Separate Translucency Enabled
UE - Graphics Features - Mar 31, 2017When a material is utilizing emissive color, separate translucency, and the project is using MSAA the material will give off intense bloom to the point of flashing the screen. [UPDATE] After addit ...