ListView does not update properly when game is paused

UE - Editor - UI Systems - Slate - Oct 12, 2021

The ListView widget currently depends on the UWorld's timer manager to fire an event indicating new entries have been generated (see UListViewBase::FinishGeneratingEntry). This can become a problem ...

[AI] GameplayDebugger can be enabled by key press when a Slate widget is focused.

UE - AI - Oct 12, 2021

Found by licensee. After debugging, it appears that the Slate input is consuming the KeyDown event which adds the apostrophe, but it passes the KeyUp event back to Player input. The gameplay debugge ...

Compilation error when using Particle SubUV in Niagara Mesh Particles with Raytracing enabled.

UE - Rendering - Niagara - Oct 12, 2021

The licensee has shared the following workaround for modifying NiagaraMeshVertexFactory.ush. struct FVertexFactoryInterpolantsVSToPS { TANGENTTOWORLD_INTERPOLATOR_BLOCK #if USE_PARTICLE_SUBU ...

AO denoiser propagate NaNs

UE - Rendering - Oct 12, 2021

Focus plane tracking calculations for cinecamera moves wrong direction when tracked subject moves past lens and behind camera

UE - Anim - Sequencer - Oct 11, 2021

If an actor moves behind the camera while being tracked for focus, the focus plane moves back away from the lens the same distance the actor moves behind the camera. This leads to undesirable behav ...

Focus tracking calculations for cinecamera lose precision when panning camera (moving tracking subject to edges of frame)

UE - Anim - Sequencer - Oct 11, 2021

Focus tracking calculation is off for keeping focus sharp on tracked object when object moves away from center of camera lens ...

The get data table row function is not exposed to python

UE - Editor - Framework - Python - Oct 8, 2021

I would like to be able to do the following blueprint code in python. [Image Removed] The getDataTableRow function is not exposed to python.  Engine\Source\Editor\BlueprintGraph\Private\K2Node_ ...

IsDataValid is not called on components inherited via the Simple Construction Script

UE - Gameplay - Blueprint - Oct 7, 2021

IsDataValid is not called for components inherited via a parent's SCS. I've attached a small repro project. (4.27) ...

I get a compile error when using Particle SubUV nodes and tessellation.

UE - Rendering - Niagara - Oct 6, 2021

I think tessellation will be discontinued in the future, but I will report it just in case. The licensee is not keen on fixing this problem. ...