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). ...

Fbx exporter do not support material instance

Tools - Import - May 15, 2020

The fbx exporter should support material instance to export the same result has the user see in the content browser or in the level editor. The fbx exporter should query component material override ...

Set Playback End will cause a sequence's upper bound to be inclusive.

Tools - Sequencer - May 14, 2020

FSequencer::SetPlaybackEnd calls SetUpperBound which creates a TRangeBound with the default bounds type, so the end frame will be inclusive instead of exclusive. ...

Cannot access private member MarkPropertyDirtyFromRepIndex error when building a nativized blueprint with a replicated property

Networking - May 14, 2020

The following error occurs when building a project that has a replicated variable with the replication condition set to Skip Owner inside a nativized blueprint.UATHelper: Packaging (Windows (64-bit) ...

PropertyAccessUtil methods do not do propagation to instances when editing archetypes

Tools - May 14, 2020

Currently value propagation is handled at the property node level (c.f., PropagateContainerPropertyChange), and is unavailable to any other editor code / scripting (whether in Python or BP or C++). ...

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 ...