Unreal Engine Issues
Unreal Engine Issues
Lidar Point Cloud Plugin functions return empty locations for individual points (both relative and world scale)
UE - Editor - Content Pipeline - Feb 21, 2025The locations of individual point cloud points are empty in the array returned from the get_points_in_box_as_copies,get_points_in_sphere_as_copies,line_trace_multi functions. The last boolean argum ...
Static mesh appears to lose material reference after setting the material via blutility and changing levels
Tools - Nov 16, 2016Static mesh appears to loose material reference after setting the material to a dynamic material instance via blutility and changing levels ...
Setting a float value with the meta tag "ExposeOnSpawn = true" on spawn doesn't retain the value
UE - Gameplay - Feb 25, 2022Float values with the meta tag expose on spawn aren't retaining their value when the value is set with a Spawn Actor node. It appears to only be floats. Maybe it has something to do with the change ...
Double to float conversions of time in renderer causes precision issues
UE - Rendering - Architecture - Materials - Apr 8, 2026In game sessions when the value for world time becomes large enough we start running into floating point precision issues. These issues can easily be seen in materials which do periodic animation b ...
[CrashReport] UBlueprintGeneratedClass::AddReferencedObjectsInUbergraphFrame()
UE - Gameplay - Blueprint - Nov 2, 2017This is a common engine crash that has occurred since at least 4.16. Users have not provided any useful descriptions of their actions when the crash occurred. The callstack shares some similaritie ...
Contact shadows bug in splitscreen
UE - Graphics Features - Dec 11, 2024Screen Space shadows do not check the view boundary. This can cause extra shadows in split screen, as one view can cast shadows in another view. ...
Animation Constraint Jitter in Sequence when Constraining Layered Control Rig node
UE - Anim - Anim in Engine - Nov 6, 2025When using constraints with layered control rigs, you get jitter on the constrained object. ...
CSM shadow casters falsely culled due to incorrect primitive octree test
UE - Graphics Features - Shadows - Sep 13, 2024While setting up whole scene shadows, CasterOuterFrustum is used to cull shadow casters from PrimitiveOctree. CasterOuterFrustum doesn't extend far back enough, which means that if an octree node fi ...
Static Mesh Contact Shadows still render when all LOD sections have Cast Shadows dissabled
UE - Rendering - Graphics Features - Oct 30, 2025When the cast shadow checkbox is disabled for all sections that make up a static mesh the main shadow is no longer rendered but the contact shadow does not respect the instruction to disable shadows ...
Packaged project crashes when playing sound from blueprint library with enum input after nativizing blueprints
UE - Gameplay - Blueprint Runtime - Aug 23, 2016Packaged project crashes when playing sound from blueprint library with enum input after nativizing blueprints. Frequency: 5/5 Notes If nativize blueprints is turned off, the packaged project wor ...