StaticMesh reimport: socket List not refresh if the count is the same

UE - Editor - Content Pipeline - Import and Export - Jul 29, 2024

Renaming Niagara's emitter name in the Timeline panel causes a crash

UE - Anim - Sequencer - Jun 18, 2024

Renaming an emitter's name in Timeline panel of Niagara editor causes an editor crash. This happens because FViewModelHierarchyOperation constructor is called with null InAnyModel ptr; FViewModelHi ...

Resizing panels causes ghosting/shifting of contents during drag

UE - Rendering Architecture - RHI - May 13, 2022

Resizing the editor window or any floating panel causes the panel contents to jitter during drag.   See attached images.  The jittering one is from Main and the normal behavior was captured in UEFN. ...

Sequencer- FComponentMaterialInfo isn't exposed to Blueprint or script, leaving script users having to call deprecated paths

UE - Anim - Sequencer - Jul 26, 2024

The ComponentMaterialTrack recently got upgraded to be able to animate parameters on different types of materials. This meant using an FComponentMaterialInfo to describe which material was being ani ...

Interchange Scene: actor creation is not optimize

UE - Editor - Content Pipeline - Import and Export - Jul 29, 2024

UInterchangeGenericLevelPipeline::ExecuteSceneNodePreImport is iterating all nodes for every actors it create. We need to cache the result. ...

FTimeline::bPlaying may remain false on clients when replaying replicated timeline

UE - Gameplay - Apr 2, 2024

This 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 ...

For a TMap with C++ enum keys, deleting and re-adding a map entry in the Editor can corrupt the map data.

UE - Editor - Workflow Systems - Jul 19, 2024

When adding an entry to a TMap using UE's property editors, in most cases the new entry comes with a default-initialized key (if such key already exists, the insertion fails). The case of a UENUM de ...

UMG: crash when a namedslot has content in a widget blueprint and its instance

UE - Editor - UI Systems - UMG - Jun 17, 2024

workaround: open WBP_A and remove its namedslot content to avoid having two contents in the same namedslot. ...

Light Complexity view mode crashes if there are hair cards in the scene

UE - Graphics Features - Jul 24, 2024

The Editor will crash if Groom Hair Cards are viewed with the Light Complexity View Mode. ...

Copy and paste from one sequencer to another does not work correctly

UE - Anim - Sequencer - Jul 26, 2024

Copy and paste from one sequencer to another does not work as expected. Let say there is a certain folder structure like this;[Link Removed] Then you press Ctrl+A then Ctrl+C for copying and past ...