Unreal Engine Issues
Unreal Engine Issues
Character No Longer Able to Use Nav Link After NavMesh Update
UE - AI - Feb 10, 2017Causing a Nav Mesh update, such as by moving an actor into the NavMesh that will create a hole, seems to be breaking Nav Link Proxies by preventing characters from being able to use them. ...
NavMesh generation should not care for Actors that are hidden in the Editor.
UE - AI - Navigation - Aug 5, 2025The problem is that the Cube is still loaded but "HiddenEd". It's AActor::bHiddenEdLayer property is set to true by the WorldPartition System. The Actor is dirty which makes the WP system pin it (wo ...
Engine Scalability view distance settings are not being reflected accurately in the viewport
UE - Graphics Features - Jan 30, 2017The foliage in the map appears to be unaffected by the changes in view distance. The scalability settings are changing the cvars to the right values but the change is not being reflected on screen ...
Gamepad continues to control editor menus during Mobile PIE session
Tools - Dec 4, 2017When using a Gamepad, there is an issue where input from the controller continues to control editor menus during Mobile PIE session. This issue does not a appear to be a regression. Versions Tested ...
Editor crash in HairStrandsMeshProjection.cpp when spawning actor with Groom Component bound to skeletal mesh
UE - Rendering - Graphics Features - Mar 23, 2026The editor crashes with an assertion failure when placing a Blueprint actor that contains a Groom Component bound to a MetaHuman skeletal mesh. The crash occurs in AddHairStrandInitMeshSamplesPass d ...
Custom Component class does not show up in Add Component list
UE - Gameplay - Blueprint - Mar 5, 2015Creating a code component class and marking the UCLASS() macro with meta=(BlueprintSpawnableComponent) does not allow the component to be used inside blueprints. Workaround: Adding ClassGroup=( [Gr ...
Mutable custom versioning issue from 5.5->5.6
UE - Anim - Mutable - Sep 19, 2025In 5.6, a handful of new entries in `FCustomizableObjectCustomVersion` were added, including `SetDisplayNamePropertyAsPinNameOfTableNodes`. Looking back at the history, `SetDisplayNamePropertyAsPinN ...
Access Violation crash deleting a Widget Blueprint with an unsaved Animation track - FSequencer::Tick()
UE - Anim - Sequencer - Jun 19, 2017Encountered an Access Violation crash while deleting an Widget Blueprint with an unsaved Animation Track. The callstack references FSequencer::Tick(). I was not able to reproduce this issue in UE4/ ...
Loss in Specularity on Skin Shading when Shadowed by Indirect Capsule Shadows using r.sss.checkerboard 0
UE - Graphics Features - May 23, 2017A licensee is reporting incorrect or over exaggerated loss of specularity on the Subsurface skin shading model when shadowed by indirect capsule shadows, and then modifying the r.sss.checkerboard se ...
Landscape Tutorial Missing a Word
Docs - Dec 9, 2019In the Landscape Tutorial Overview there is a word missing in the tutorial. ...