Scale box affects all children in a parent container widget when setting User Specified Scale

Tools - UMG - Jul 5, 2018

When a scale box is the the first child of a container widget, setting the user specified scale to 0 will affect all other widgets in the same parent container. ...

Distance Field Shadows Not Working On Large Objects

Rendering - May 10, 2018

UDN Licensee reported this on 4.16, and I can repro in 4.17- 4.19.  Per Licensee: I'm trying to use distance field shadows on very large objects, but it looks like it does not work. Can you sugge ...

Editor Crash When DFAO Viewport Has Zero Area

Rendering - 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 ...

Actor does not receive End Play if it was destroyed during the world's Begin Play and it had already begun play

Gameplay - Mar 30, 2018

If an Actor destroys another Actor when the game is first starting, then End Play does not get called on the destroyed Actor. In the attached project, there is an Actor Blueprint in the level that s ...

Unable to edit inherited component properties in a Blueprint if the Component type is set to None and the Blueprint is compiled

Gameplay - Blueprint Editor - Mar 26, 2018

If an inherited component that uses the EditAnywhere specifier has the component type drop down set to None, the component's details can no longer be edited in the Details tab after the Blueprint is ...

On Mobile only: CullDistanceVolume doesn't work if put it in a Persistent level using World Composition

Platform - Mobile - Mar 20, 2018

On PC no problem;CulDistanceVolume in Sub levels, no problem;Regular level streaming by blueprint instead of using World Composition has no problem Expect: CullDistanceVolume should work in Persisten ...

Engine build fails due to Unresolved External Symbol error after adding a new global variable to the Engine and then trying to reference it within Engine code

DevTools - UnrealBuildTool - Feb 7, 2018

Building the Engine in Visual Studio will fail due to an unresolved external symbol error if a new global variable is added to CoreGlobals.h and then referenced elsewhere in the Engine code. The bui ...

FOV only Camera anim is not working as intended.

Gameplay - Feb 6, 2018

FOV-track-only camera anim do not give effect to current camera. if the anim have transform track without any key, the anim works. Regression? yes. This is not reproduced in 4.13.2 launcher version ...

Normals Creating Lighting Artifacts On Mesh

Tools - Feb 2, 2018

Normals face up throughout the animation in Maya (2016) but do not remain faceup in Unreal. There is also a lighting artifact visible in the animation editor as well if it is brought into the editor ...

Optimization Viewmode Quad Overdraw Remains on Screen After Switching to Stationary Light Overlap

Rendering - Jan 29, 2018

The optimization view mode 'Quad Overdraw' image is not properly cleaned up when switching directly to 'Stationary Light Overlap' view mode. See attached images.  ...