Alembic Caches Not Working With Lumen

UE - Graphics Features - Lumen - Jan 20, 2022

It appears that Alembic caches do not influence Lumen's indirect lighting (except for shadowing). Alembic geometry caches should influence lighting in Lumen as any other geometry in a level. I hav ...

Changing Frame Buffer Pixel Format to Float RGBA makes the editor color look greyed out.

UE - Virtual Production - Rendering - Color - Jan 20, 2022

Changing Frame Buffer Pixel Format to Float RGBA makes the editor color greyed out with a faded look. This is not a regression it is occurring in 4.27. ...

Niagara Dynamic Parameters do not reflect layers in material instances.

UE - Niagara - Jan 19, 2022

The names of dynamic parameters in material layers do not seem to update from material instances.  ...

Deleting a Sync Marker created by an Animation modifier deletes all Sync Marks made by the Animation Modifier

UE - Anim - Jan 14, 2022

Using the delete key or context menu to delete a single sync marker created by an Animation Modifier deletes all sync markers created by the Animation Modifier. If all the markers are deleted, and ...

Adding a key to an Absolute transform section will accumulate an extra transform offset when a transform override is set on a sequence.

UE - Anim - Sequencer - Jan 13, 2022

The keyed transform value will have the origin offset applied to it when it should not be.  ...

World Outliner: Selecting Folder fails (needs to be clicked twice)

UE - Editor - Workflow Systems - Jan 7, 2022

I've investigated the issue and it is related to TypedElementSelection sending out end of frame selection change events. WorldOutliner when it is the source of a selection change does so inside a r ...

Editor crashes when creating a new level while the current level contains an Actor with an Actor Sequence Component

UE - Anim - Sequencer - Jan 5, 2022

This is not a regression. Tested in: //UE5/Main CL18218925 Binary - Crashed //UE5/Release-5.0 CL16682836 Binary - Crashed //UE4/Release-4.27 CL Binary - Crashed Having a level open that contains a ...

Infrequent WaitingTask->IsCompleted crash related to FNiagaraSubmixListener closing QAGame -game

UE - Audio - Submixes - Jan 5, 2022

Infrequent WaitingTask->IsCompleted crash related to FNiagaraSubmixListener closing QAGame -game Unsure if related to [Link Removed] it was spawned from a group of oodle crashes and this is distinc ...

Cook issue, the morph target from the running platform can replace the target platform

UE - Editor - Content Pipeline - Asset Build - Jan 5, 2022