Reset To Defaults in Editor Preferences Graph Editor does not work consistently

Tools - Nov 7, 2018

The Reset to Defaults button in Editor Preferences does not reset all the properties to their default values. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4543149), 4.22 (CL ...

STAT_VolumetricLightmapBuildData is not counted correctly

UE - Graphics Features - Dec 9, 2022

STAT_VolumetricLightmapBuildData isn't counted correctly. It seems that the root cause is Volume.IndirectionTexture.DataSize is set to 0 before STAT_VolumetricLightmapBuildData is decreased.// Prec ...

Lighting Scenarios Map Check warning about multiple skylights not supported

UE - Graphics Features - Dec 5, 2016

When using Lighting Scenarios and placing a skylight in the lighting scenario levels when you build lighting there will be a map check warning that "Multiple sky lights are active, only one can be e ...

~FStaticMesh() can crash with race condition

UE - Graphics Features - Mar 21, 2017

UDN user reported frequent crashes in FStaticMesh::~FStaticMesh() on DrawListLinks[i]->Remove(false); Crash went away after adding critical sections to FStaticMesh::LinkDrawList(), FStaticMesh::Unl ...

The engine crashes when adding a new brush at newly created level by a specific way.

UE - LD & Modeling - Modeling Tools - Mesh Editing - Jun 17, 2019

issuesFBSPOps::csgAddOperation returns null if BuilderBrush has no valid polys.The creating level on content browser never calls "UEditorEngine::InitBuilderBrush(NewWorld);". But "New level" button o ...

Button remains in hovered state on mobile device

UE - Editor - UI Systems - Jul 11, 2016

If the user touches the screen of a mobile device and then drags their finger over a button the button will remain highlighted as though it were being hovered. Note: This was tested on the Samsung ...

"Override Game Mode" only works with "Use Separate Process" enabled

UE - Anim - Sequencer - Jul 13, 2016

Override Game Mode only works when Using Separate Process ...

Sequence repeatedly dirties when it contains a spawnable actor

UE - Anim - Sequencer - Jul 25, 2017

Level sequence becomes dirtied when opening other level sequences if the level sequence contains a track with a spawnable actor ...

Sequencer will not play Blendshape (Morph Target) Animations while in Realtime

UE - Anim - Sequencer - Mar 16, 2016

An Animation Track that references a Blend Shape, Morph Target, Animation will not play when you play from Level Sequencer in Editor unless you turn off real time. Also it seems if Realtime is turn ...

Rebuild and Clean options in Visual Studio fails compile

UE - Foundation - Build - Farm - Oct 20, 2016

Attempting to use Rebuild / Clean fails to compile. VS output shown in callstack. ...