User defined struct variables with spaces do not import properly in cooked builds

UE - Gameplay - Blueprint - Aug 11, 2020

DataTables exported to JSON in editor (UDataTable::WriteTableAsJSON, accessible by right clicking a data table and picking export to json) that contain variables with spaces or other outlawed charac ...

Uniform Static Mesh Sampling doesn't work on GPU Niagara Emitters

UE - Niagara - Aug 11, 2020

Uniform sampling of static meshes for GPU emitters does not work. ...

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 ...

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. ...

D3D device being lost ( DXGI_ERROR_DEVICE_REMOVED ) on both D3D11 and D3D12

UE - Rendering - Architecture - RHI - Aug 10, 2020

It is hard to reproduce, but a licensee reported in UDN that it crashed on his computer frequently. He provided two crash dumps with logs which I uploaded here.[Link Removed][Link Removed] OS: W ...

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. ...

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.  ...

Niagara Particles do not respond to Set World Origin Location

UE - Niagara - Aug 17, 2020

Setting the world origin will not update existing Niagara particles. ...

Some developers reporting incorrect Preview in VR resolution for Steam VR

UE - Platform - XR - Aug 18, 2020

VR Preview Window is the wrong resolution, just showing the top left portion of the entire view. Somewhat similar symptoms to -[Link Removed]-, not exactly the same though.   This issue has not be ...

Adding an actor with a default property track immediately after opening a sequence will crash the editor

UE - Anim - Sequencer - Aug 14, 2020

If an actor has default property tracks set up in the Project Settings, adding that actor to a level sequence through C++ will crash the editor. This seems to stem from the creation of the default p ...