Duplicating Interface functions causes the Input/Output values to duplicate twice

UE - Gameplay - Apr 27, 2018

When duplicating an Interface function, the values for Input/Output are doubled or tripled. ...

Cursors: 'Grab Hand' and 'Grab Hand Closed' appear as 'Hand' in packaged project

UE - Editor - UI Systems - Slate - Jul 13, 2018

GrabHand Cursors appear as Hand (Index finger cursor) in a packaged project 4.20p5 CL# 4173640 4.21 CL# 4179764 ...

HISM: Calling UpdateInstanceTransform with a transform only containing rotation or scale would not update the transform at runtime or cooked

UE - World Creation - Worldbuilding Tools - Foliage - Aug 29, 2018

Calling UpdateInstanceTransform on a HISMC with a transform only containing rotation or scale would not update the transform at runtime or cooked. ...

Sequencer's Spawnable actor rename can not be synchronized between sequencer and outliner

UE - Anim - Sequencer - Jun 11, 2019

This behavior seems to occur only for spawnable. The licensee wants the renaming behavior to be consistent. ...

VolumeLightingSamples are not generated correctly

UE - Graphics Features - Lumen - Aug 30, 2019

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 ...

"Pausing" A TimeSynth causes a crash

UE - Audio - Oct 10, 2019

Clicking and holding anywhere on the editor outside the viewport when PIE causes a crash. The AudioRendering thread throws the following assert: Assertion failed: FreeClipIndex < PlayingClipsPool_Au ...

thumbnail is updated at an unintended timing

UE - Editor - Content Pipeline - Content Browser - Oct 14, 2019

This seems to be because the OrbitZoom of ThumbnailInfo is rewritten by ResetCamera () when the viewport is opened. Is this correct processing? ...

LivePP won't react with CTRL+ALT+F11 when debugger is break

UE - Foundation - Cpp Tools - Live Coding - Aug 21, 2019

Before we were able to request CTRL+ALT+F11 while debugger is paused, then resuming the debugger (F5), LivePP was kicking, rebuilding before really unpausing the debugger. Now, if I want LivePP to ...

MoviePipeline: Can't inherit from UMoviePipelineSetting in BP due to PURE_VIRTUAL

UE - Anim - Sequencer - Oct 28, 2021

IsValidOnMaster/IsValidOnShot need to be BlueprintNativeEvents with a default C++ implementation and allow derived classes to override the function. This is needed so that you can create custom set ...