Unreal Engine Issues

VolumeLightingSamples are not generated correctly

Lightmass.exe SampleVolume.cpp seems to generate VolumeLightingSamples correctly. After that, import processing is performed with Lightmass.cpp ImportVolumeSamples (), but it seems that it is not i ...

When multiple HLODs are set, the transition does not occur correctly

The [bIsVisible] flag is set to [1] by the following judgment.const bool bIsInDrawRange = DistanceSquared >= Bounds.MinDrawDistanceSq * HLODState.FOVDistanceScaleSq; Judging from this code, I bel ...

Cascade pooled emitters are not reclaimed on disabled LODs

Pooled memory will not be reclaimed from emitters with disabled LODs if Disabled LODs Keep Emitter Alive is checked. ...

Missing Context Menu Entries from Child of Abstract UClass

AnimDynamics does not accurately reflect the wind direction when SimulationSpace is set to something other than Component

The processing related to WindDirection in AnimDynamics( in FAnimNode_AnimDynamics::PreUpdate ) does not consider other than ComponentSpace.// Setup wind data Body->bWindEnabled = true; Scene->Get ...

Memory leak with disable rendering

When executing "ShowFlag.Rendering 0", it occur the memory leak because it can't run RHICmdList.ImmediateFlush(). The following code is a workaround. DEC_MEMORY_STAT_BY() is ImmediateFlush. Witho ...

Exporting Camera Anims from Sequencer does not copy over tangents correctly

This appears to be tied to the integer time conversion. Converting in MovieSceneToolHelpers::CopyKeyDataToMoveAxis does not account for frame rate when converting tangents. I tested multiplying the ...

UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds

In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...

Invalidation box inside of scale box can cause jittering when using split anchors

When using a combination of Scale box, Invalidation box, and split anchors it can cause the child widget(S) of the invalidation box to jitter/shake. ...

Camera Shakes with Oscillation Blend Out Time do not play for their full duration in Sequencer

Camera shake oscillations with blend out time do not play their full duration in sequencer.  ...