Unreal Engine Issues
Unreal Engine Issues
Having two Play Persistent Audio modules in Niagara will only play the first sound
UE - Niagara - Jan 24, 2024Only one Play Persistent Audio module will work at a time in a Niagara emitter. ...
Enhanced Input does not fire a "Cancelled" event for mappings that were in progress, but removed during a key-rebuild
UE - Gameplay - Input - Apr 1, 2024If the return value of a trigger goes from ETriggerState::Ongoing to ETtriggerState::None, without returning a ETriggerState::Triggered, then there should be a "cancelled" event that is fired when E ...
'Max World Position Offset Displacement' causes culling issue on HISMC/foliage in 5.4
UE - Rendering Architecture - Materials - Jul 9, 2024Foliage/hierarchical instanced static mesh components have issues with culling when their material's "Max World Position Offset Displacement" value is a higher amount, e.g. 100.0. ...
Add Code to Project fails to add a class to the project
UE - Foundation - Core - Mar 16, 2015Add Code to Project fails to add a class to the project. The project can't be reopened until the classes are manually removed and the project is recompiled. The following errors occur when using Add ...
Audio Persists and App becomes Unresponsive when Opening Map and Calling Movies to Load
Media Framework - Nov 17, 2016A licensee is experiencing odd behavior when using custom code to call a loading movie when opening/loading a level. The licensee has implemented a loading movie to play when calling a map to open ...
Collision Profile Name variable gets reset on multiple select
UE - Simulation - Physics - Jun 20, 2017When adding a variable of collision profile name type to an actor(as editable), its value gets reset when the instance becomes a part of multiple selection. ...
XR Planar Reflections lag behind VR headset movement
UE - Platform - XR - Mar 24, 2023Planar Reflections lag behind VR headset movement [Link Removed] Reporting that reflection captures lag because they happen before late update is applied. Includes an experimental patch that fi ...
TakeRecorder does not add a track to a level sequence when niagara FX is spawned
UE - Anim - Sequencer - Mar 5, 2024In UTakeRecorderActorSource::EnsureObjectTemplateHasComponent() function, MakeUniqueObjectName() generates the same name of a component which CachedObjectTemplate for TakeRecorder has already had. T ...
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
Duplicating meshes in blueprint improperly place transform widget and initially does not appear in viewport
UE - Gameplay - Blueprint - Jun 24, 2015If a mesh is duplicated within a blueprint components panel, it will be invisible in the viewport, the transform widget will incorrectly align itself and refrain from moving, and if the transform wi ...