Unreal Engine Issues
Unreal Engine Issues
Compilation error when using Particle SubUV in Niagara Mesh Particles with Raytracing enabled.
UE - Niagara - Oct 12, 2021The licensee has shared the following workaround for modifying NiagaraMeshVertexFactory.ush. struct FVertexFactoryInterpolantsVSToPS { TANGENTTOWORLD_INTERPOLATOR_BLOCK #if USE_PARTICLE_SUBU ...
Crash Occurs When Using the Hide Bone by Name Node
UE - Gameplay - Oct 18, 2016The editor is crashing when attempting to hide a bone using the Hide Bone by Name node after using the Set Master Pose Component. ...
[CrashReport] UE4Editor_UnrealEd!UEditorEngine::TeardownPlaySession() [playlevel.cpp:595]
Tools - Aug 30, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: EditorWorld == G ...
Arrays of user-defined structs are not initialized properly in a nativized Blueprint class.
UE - Gameplay - Blueprint - Feb 28, 2018New elements are not being initialized properly when setting up the default value for arrays of user-defined structures in nativized Blueprint C++ constructor code. ...
[CrashReport] UE4Editor_MovieScene!FMovieSceneEvaluationTrack::EvaluateStatic() [moviesceneevaluationtrack.cpp:445]
UE - Anim - Sequencer - Apr 11, 2018No comments from users in crash group 442 void FMovieSceneEvaluationTrack::EvaluateStatic(FMovieSceneSegmentIdentifier SegmentID, const FMovieSceneEvaluationOperand& Operand, FMovieSceneConte ...
Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child state.
UE - AI - StateTree - Apr 25, 2023This is a regression. Tested in //UE5/Release-5.1 CL2390901 The crash occurred 3/5 times. Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child ...
[CrashReport] UE4Editor_Core!FText::FText() [text.cpp:165]
Tools - Jan 12, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...
EOS Voice plugin causes a crash after adding "DefaultPlatformService=EOS" to the DefaultEngine.ini then restarting the editor
UE - Online - Jan 10, 2022This is not a regression. Doesn't affect UE5. The editor crashes on start up after enabling EOS Voice Chat, and updating the .ini to include DefaultPlatformService=EOS. Removing DefaultPlatformServ ...
Crumbling Geometry Collections do not render for one frame when child clusters crumble
UE - Runtime - Deformable - Oct 3, 2024Crumbling Geometry collection do not render for one frame when child clusters crumble. In the repro project a 4 particle GC is told to crumble. The single GeometryCollectionActor is then split into ...
Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level
UE - Graphics Features - May 14, 2025Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...