Disabling LQ lightmaps causes crash on mobile preview

UE - Platform - Mobile - Mar 16, 2017

'Set Playback Position' node fires Timeline event even if 'Fire Events' is set to false

UE - Gameplay - Apr 30, 2015

'Set Playback Position' node fires Timeline event even if 'Fire Events' is set to false. User Description: Basically using the set playback position node to set a new time position for a timeline ...

Memory leak in Test build when moving ISM with UpdateInstanceTransform

UE - Graphics Features - Jul 20, 2020

This leak occurs in Test builds, but not in Development builds. Updating InstancedStaticMesh with UpdateInstancedTransform every frame causes a memory leak. This screenshot was taken using Mempr ...

Bridge plugin causing crash when right-clicking content browser on Mac

Quixel - Apr 5, 2023

Right clicking in the content browser causes a crash with the Quixel Bridge plugin enabled.  This issue is occurring in Binary //UE5/Release-5.2-Preview-2 @ CL 24887336 This issue is not occurring ...

'Quit Editor' Blueprint Node Crashes Editor

UE - Editor - Content Pipeline - Content Browser - Jun 26, 2023

Using the Quit Editor blueprint node crashes the editor when used, instead of exiting cleanly. Closing the Content Browser prevents the crash from occurring, however. ...

Cannot save actor after actor component modification, Graph is linked to private object(s) in an external package

UE - Gameplay - Blueprint - Sep 28, 2016

Cannot save actor after actor component modification. The user gets the error Graph is linked to private object(s) in an external package ...

When having two viewport panes open in editor, and piloting/unpiloting a camera actor in one pane, will cause the other pane to reset viewport camera orientation.

Tools - Jan 8, 2019

Piloting and "Un-piloting" a camera Actor in viewport pane causes other viewport panes to reset its view orientation upon "Un-piloting" of Camera Actor. ...

Linked Anim Graph in Post Process Anim BP does NOT work after remove ControlRig Track

UE - Anim - Rigging - Control Rig - Oct 11, 2022

After remove control rig track from the skeletal mesh, Linked Anim Graph in Post Process Anim BP of the SK Mesh does NOT work. This issue can be fixed by the following code.// add #include "Anima ...

Changes in Scale are not replicated on the Client through RPCs

UE - Networking - Apr 27, 2015

Changes in Scale are not replicated on the Client through RPCs. Location and Rotation are replicated as expected. Reproduced in 4.7.6 binary and Main (//depot/UE4/Promotable-CL-2522625) ...

Invalid Operand "WorldPartition" when calling FAutomationEditorCommonUtils::CreateNewMap();

UE - World Creation - Worldbuilding Tools - World Partition - May 13, 2022

LogAutomationController: Error: LogEditCondition: WorldSettings - EditCondition attempted to use an invalid operand "WorldPartition". ...