Unreal Engine Issues
Unreal Engine Issues
Decals Normal only + Material Attributes
UE - Rendering - Features - Mar 24, 2023This does not just work with BaseColor, you can affect any of the outputs by connecting something to a disconnected CreateMaterialAttributes. ...
Light components stay visible if "Actor Hidden In Game" is checked
UE - Graphics Features - Feb 6, 2017Light components stay visible if "Actor Hidden In Game" is checked. This issue occurs even when other components (such as a static mesh) are no longer visible. I tested with a static mesh component ...
App crashes when Launching on or launching packaged project on tvOS or iOS
UE - Platform - Mobile - Aug 1, 2016Launch on to tvOS crashes the app on the device and returns the user to the main screen. This also affects packaged projects Update Project packaged in shipping configuration launched successfully ...
Meshes often render or flicker black in one eye on OSVR
UE - Platform - XR - May 6, 2016Found on: //UE4/Dev-VR CL-2967563 Often, meshes will render completely black in one eye on the OSVR. This seems to affect close meshes more frequently than far away ones. Sometimes the meshes flick ...
Pawn Blueprint cannot have variables default value set in Engine ini
UE - Gameplay - Blueprint - Jun 1, 2017When using a pawn blueprint, you cannot modify the value of a variable in the config files. This issue does not affect other kinds of blueprints, as this issue does not affect actor blueprints. Re ...
Rotation popping when attaching the negatively scaled hand mesh of a motion controller the child of a box collision component (left hand)
UE - Platform - XR - Mar 7, 2017The left hand in the VR template appears to pop as it rotates when assigning the mesh for the motion controller a parent that is a box collision component. This does not appear to affect the right h ...
sg.ResolutionQuality command doesn't work
UE - Graphics Features - Jan 9, 2015Using the sg.ResolutionQuality command in code or the console has no effect in 4.6.1 or 4.7. ...
Misspellings in Material_Properties level of ContentExamples
Docs - Samples - Jan 18, 2017In the Material_Properties level of ContentExamples, separate is misspelled in demo display 1.6 and tessellation is misspelled in demo display 1.8. ...
Disabled Skeletal Mesh Sections cause Shadow Ray Tracing Flicker
UE - Rendering - Features - Ray Tracing - Dec 12, 2025If a skeletal mesh has a section disabled the ray traced shadow will flicker when the camera or itself moves. Previously in 5.6.0 no raytraced shadow would appear if a section was disabled. This wa ...
[AI] SmartObjectPersistentCollection produces errors during Map Validation
zComponent - Archive - Nov 18, 2025SmartObjectPersistentCollection in 5.6 and later now give errors when the map validator runs due to referencing spatially loaded actors. This was working per licensee in 5.5. There was a change from ...