Auto-generated lightmap doesn't use some UV islands with the packed lightmap UV

UE - Graphics Features - Sep 20, 2016

Some faces from the UV0 for the texture UV are not used when repacking for the auto-generated Lightmap UV even if the faces are split and visible in the UV0. Attached example mesh. ...

PixelNormalWS not working with Deferred Decals

UE - Graphics Features - Oct 14, 2016

Decals are no longer rendering correctly with PixelNormalWS plugged into the Emissive or Base Color input. ...

Coordinate indicator disappears when entering landscape editing mode

Tools - Oct 24, 2016

Coordinate indicator disappears when entering landscape editing mode. The indicator disappears after switching to landscape mode in the editor Note: This appears to work in 4.13.2 ...

HISMC with LODs added as a Blueprint Component creates extra Material Elements

UE - Graphics Features - Oct 18, 2016

Adding a HISM as a component within blueprints and referencing a Static Mesh with LODs, creates extra/additional and material elements. ...

REGRESSION: HierarchicalInstancedStaticMeshComponent LOD transitions are broken in 4.9 and Main

UE - Graphics Features - Aug 24, 2015

While testing another fix I noticed HISM LOD transitions are not working in Main or 4.9 branch. There is no screen-door effect and multiple LODs seem to be rendering simultaneously compared to 4.8. ...

Attempting to open a map in content browser that is currently loaded in world composition browser crashes editor

Tools - May 12, 2015

Attempting to open a map through the content browser will crash the editor if that map is opened as a sublevel or the currently opened map through the world composition browser. Frequency: 2/2 Cr ...

Splitting transform pins on add component nodes creates an additional transform pin when duplicated

UE - Gameplay - Blueprint - May 28, 2015

If an add component node is duplicated after the transform pin has been split, it will create an additional transform pin and keep the original split variables. ...

Crash opening projects from GitHub master branch

Tools - Sep 1, 2015

Trying to create/open projects in the current github master branch will quietly fail at 94% with no crash error or logs.UE4Editor-Core.dll!rml::internal::Block::findObjectSize() UE4Editor-Core.dll! ...

Animtation Starter Pack: Character does not animate correctly moving Forward/Left or Backward/Right

Docs - Samples - Jul 30, 2015

In the Animation Starter Pack, if you hold down W+A simultaneosly to move Forward/Left OR S+D to move Backward/Right, the character does not face the proper direction and will appear to "slide" acro ...

Morph Targets not updating when scrubbing through Matinee timeline

Tools - Apr 6, 2016

Users reporting that they cannot preview morph target animations while scrubbing through matinee. They suspect that it may be caused by this update in the release notes: "New: Optimized Matinee Act ...