Spline Mesh Collision doesn't work in packaged game when spawning them at runtime

Physics - May 18, 2020

Spline Mesh Components lose their collision in a packaged game when spawning them at runtime, or modifying them via 'Set Start and End' function at runtime. ...

On PC and Mobile Preview, Volumetric Lightmap provide very different Indirect lighting direction

Rendering - Ray Tracing - May 18, 2020

Expectation: It's known it has different lighting interpolations method and quality for VLM on PCvsMobile; but Indirect lighting from VLM should provide similar lighting Direction on PC&Mobile. ...

When enabling virtual texture lightmaps it looks different viewing

Rendering - Ray Tracing - May 15, 2020

After switching the Virtual texture lightmap on/off, it looks different. It looks like there is a difference in the light map because there are some missing shadows (see attached screenshots). ...

Niagara Preview viewport is unaffected by Preview Scene Setting Environment Color

Rendering - Niagara - May 14, 2020

Preview Scene Setting Environment Color only shows as black in Niagara editor viewports This issue does not reproduce in the Material, Static Mesh, Skeletal Mesh, Anim BP, or Control Rig Editors. ...

ObjectScale returns a Cascade Mesh particle's XYZ scale as 1.0

Rendering - Cascade - May 13, 2020

Sampling a Cascade Mesh Particle's scale always returns XYZ as 1.0 This is a regression from UE4/Release-4.24.  This does NOT affect Niagara Mesh particles.  I've attached a Cascade (left example ...

Sequencer transform origin not updated on first frame

Tools - Sequencer - May 13, 2020

When the level sequence is evaluated from calling play on a level sequence player the level sequence actor does not have an opportunity to tick, which is where the transform origin is calculated. ...

Make staticmesh custom LOD coexist with LODGroup

Tools - Import - May 13, 2020

The LOD Group is remove if we import a custom LOD for one of the generated LOD. This can be difficult when user change the LOD group setting later in the production, has the LODs that was regenerate ...

EditCondition doesn't work on C-arrays

Tools - May 13, 2020

Toggling a bool doesn't enable/disable the elements of the array similarly to how it does for TArray in the details panel. Static arrays should have the same semantics as TArray with regards to edit ...