Crash accessing USplineComponent from Niagara while it is being updated on game thread

UE - Niagara - Aug 13, 2020

I was working with a licensee on something unrelated, and ran into this niagara threading crash. It looks like UNiagaraDataInterfaceSpline::SampleSplinePositionByUnitDistance on one of the niagara h ...

Stepped animations do not align with level sequences when playing at the same frame rate

UE - Anim - Sequencer - Aug 13, 2020

Stepped animations will not evaluate at the same frames as the level sequence it's in even when they are both at the same frame rate.  ...

Static lighting isn't bouncing when using Layered Materials

UE - Graphics Features - Lumen - Aug 13, 2020

Static lighting will not bounce on the ceiling when using a Layered Material. The Material Attributes Layers node is used which doesn't appear in 4.24.3 so this isn't a regression. This was report ...

Cruncher Sharp Double click navigation doesnt work

UE - Foundation - Core - Aug 12, 2020

[Image Removed] [Image Removed] I suspect this came in at 13550642 where I created a more separated data/view model ...

Adding NotifyTrack from AnimDataModifier doesn't refresh Animation Editor

UE - Anim - Runtime - Aug 12, 2020

When creating a Notify Track using an Animation Modifier in the Animation tab of an Animation Sequence, the new Track added and applied fails to appear in the Notifies panel until the panel has been ...

Importing camera FBX through Python will not import focal length

UE - Anim - Sequencer - Aug 12, 2020

Importing a camera's FBX through Python will not import a camera's animated focal length. ...

Crash when converting a Landscape to a Blueprint Class

UE - LD & Modeling - Terrain - Landscape - Aug 12, 2020

The Editor crashes when attempting to convert a Landscape into a Blueprint Class. Looking back to //UE4/Release-4.24 cl 11590231, this option seems to be unselectable (see attached image), which lea ...

Normal of Skeletal Mesh is incorrect when Recompute Tangent is used when Skincache is enabled

UE - Graphics Features - Aug 12, 2020

This issue occurs in Skeletal Mesh depending on the model when Skincache is enabled and affects the rendering. ...

Lightmass ignores StaticSwitch in materialinstance

UE - Graphics Features - Aug 12, 2020

This is caused by FLightmassMaterialProxy doesn't have GetStaticParameterSet() function. (FMaterial::GetStaticParameterSet() is called.) It can be fixed by adding the following function to FLightma ...

IoStore: Can not update localization asset when change culture.

UE - Foundation - Core - Aug 12, 2020

It can't be updated localization assets when enabled IOStore. When disabled IOStore, it'll be able to update localization assets. ...