Unreal Engine Issues
Unreal Engine Issues
FTimeline::bPlaying may remain false on clients when replaying replicated timeline
UE - Gameplay - Apr 2, 2024This seems to occur when FTimeline::Stop is called on the client but not on the server, as this will set bPlaying to false locally on the client. Because the value for bPlaying doesn't change on the ...
Reimport FBX does not correctly update frame-rate
UE - Anim - Runtime - Apr 2, 2024This is an issue with the sequencer model, it does not clear its bPopulated flag so doesn't allow for changing the frame-rate to a non-compatible (multiple/factor off FPS). ...
Opaque GPU particles appear later than translucent one when Collision module is enabled
UE - Niagara - Rendering - Apr 2, 2024When spawning GPUCompute Sim Niagara system which is consist of opaque particle emitter and translucent one, if those emitters use Collision module, opaque particle often appears one frame later tha ...
Dynamic Materials created on level actors through binding actor to sequencer causes missing asset in multiuser and crash in editor
UE - Anim - Sequencer - Apr 1, 2024[2024.02.24-00.44.16:412][ 0]LogOutputDevice: Error: === Handled ensure: === [2024.02.24-00.44.16:412][ 0]LogOutputDevice: Error: [2024.02.24-00.44.16:412][ 0]LogOutputDevice: Error: Ensure condit ...
Issue where some colors are missing in some materials created by importing MaterialX files
UE - Editor - Content Pipeline - Import and Export - Apr 1, 2024From user: Comparing UE, Arnold, Vray and MaterialXView that have MaterialX files imported, some materials of UE clearly look different from other renderers. Looking into this issue, we found that ...
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 ...
TakeRecorder cannot record Auto Activate and Destroy of Niagara effect
UE - Niagara - Apr 1, 2024When Niagara FX of a recording actor is spawned during taking a record, that FX behavior must be recorded and able to be playbacked. However, Niagara Component Auto Activation by BP node is not reco ...
CommonUI Analog Cursor + Enhanced Input triggers cause triggers to get stuck when alt-tabbing
UE - Editor - UI Systems - Mar 29, 2024Came out of [Link Removed] and is related to this one too I think that this is signaling that we need better solutions for input consumption in the engine honestly. This is a constant pain point ...
RewindDebugger visual artifacts when actor's LOD switches during recording when using MetaHumans
UE - Anim - Gameplay - Mar 28, 2024Rewind debugger sometimes behaves incorrectly during lod switches. Users have found this on a metahuman. ...
UE5.4 Preview 1 produces rendering artifacts on Landscape with World Position Offset
UE - Graphics Tools - Terrain - Landscape - Mar 28, 2024A material on a landscape with WPO will cause major ghosting, even if that WPO is a dynamic {0,0,0} ,such as from a black texture. ...