Skylight has too much influence on Subsurface Scattering

UE - Graphics Features - May 9, 2017

Users on the AnswerHub are reporting that Skylights have too much effect on Subsurface Scattering. The argument here seems to be Movable Skylights versus Static/Stationary and their results regardi ...

UUserWidget::SetPositionInViewport does not function as intended

UE - Editor - UI Systems - Oct 15, 2018

The Set Position in Viewport node does affect UserWidgets position. It keeps it 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21  (CL - 4465720), 4.22 (CL - 44654877) ...

Unreal crashes when you connect scalar node to scalar input, when material function has a vertex interpolator

UE - Graphics Features - Mar 19, 2018

There is an issue occurring where Unreal crashes when you connect a scalar node to scalar input when the material function has a vertex interpolator. This issue causes the engine to crash, but the i ...

Editor crashes if Sequencer has keyframes for a variable that has changed

UE - Anim - Sequencer - Sep 19, 2018

The Editor crashes if loaded sequence has keyframes for an actor variable that has been changed, instead of soft erroring out. This was reported and tested on 4.20.3 (CL-4369336). It was reproduced ...

Editor Crash When DFAO Viewport Has Zero Area

UE - Graphics Features - Apr 19, 2018

I've reproduced this crash in 4.16, 4.17, 4.18, 4.19, and Main. Per licensee: The editor crashes if distance field ambient occlusion is enabled and a viewport is resized to have zero height. Th ...

Creating SplineMeshComponents along Spline causes crash

Tools - Aug 22, 2018

Attempting to procedurally create SplineMeshComponents along the spline of a SplineComponent via a derived SplineComponent class's constructor causes the project to crash. It runs into an ensure mes ...

Ensure when pasting copied nodes into an Object

UE - Gameplay - Aug 7, 2018

When copy and pasting nodes from an Actor Blueprint to an Object Blueprint the Editor stalls for a bit and an ensure occurs. This issue was reported and tested in 4.19.2 (CL-4033788). This issue ...

Unable to package with a Media Player On End Reached event in a Level Blueprint

Media Framework - Sep 19, 2018

If a Media Player's "On End Reached" event is present in a Level Blueprint, even if it is not being used, packaging the project will fail. An error is thrown and a callstack is given. Please see the ...

Editing Layered Material Instance Causes Editor Crash

UE - Graphics Features - May 23, 2018

Crash repros in 4.19.2 and Main CL 4088075. Triggering the crash can be inconsistent- you may have to assign the material instance to a mesh, force shaders to recompile, save, and continue toggling ...

Crash occurs when starting PIE on a level containing a FunctionalTest Blueprint and a sub-level with a landscape component in both levels

UE - LD & Modeling - Terrain - Landscape - Oct 23, 2018

Placing a FunctionalTest Blueprint into a level that contains a landscape component and a sub-level that also contains a landscape component results in a crash when PIE is started. This only occurs ...