Custom Depth Post Process Stencil does not work with Material Billboard on Actors

UE - Graphics Features - Nov 27, 2017

MaterialBillboardComponent does not render with CustomDepth material in PostProcessVolume as other objects do. Found in 4.16.3 CL 3561208, 4.17.2 CL 3658906, 4.18.1 CL 3454814 ...

Material Instance Parameter Values Reset When Renamed

UE - Rendering Architecture - Materials - Nov 27, 2017

Per Licensee: We would like to change some of their parameter names, however when renaming a parameter, its value in all of the corresponding material instances resets to the base material default ...

Mouse movements during Simulate will slightly move Skeletal Mesh actors that are simulating physics

UE - Simulation - Physics - Nov 27, 2017

Mouse movements during Simulate will slightly move Skeletal Mesh actors that are simulating physics. This also effects physics assets in the PhAT editor during simulate. The effect is small but I wa ...

While mouse dragging a Spinbox Widget, it cannot be edited once the player's focus is lost (calling: Set Input Mode)

UE - Editor - UI Systems - Nov 28, 2017

The Spinbox Widget cannot be edited if the Player's focus is lost. I have tried using different keyboard letter inputs in the Blueprints and have gotten the same results. ...

Instanced Properties create temporary references on child objects in Blueprints

UE - Gameplay - Blueprint - Nov 29, 2017

When an object whose class has the EditInlineNew specifier is added to an instanced property, any children of the blueprint will have a reference to the same object that was created for the instance ...

Enable Per Poly Collision setting in skeletal mesh doesn't apply when adding mesh to level

OLD - Anim - Nov 30, 2017

On a skeletal mesh, there is a setting under the Asset Details for "Enable Per Poly Collision". This check box can be checked, but the setting is not kept when the skeletal mesh is added to the leve ...

Reroute Node Breaks Link in Material Editor When Used with Material Function

UE - Rendering Architecture - Materials - Nov 30, 2017

Adding a reroute node in the material editor between a texture object and a material function breaks the link and the texture object is no longer applied. Adding a reroute node into a spline that d ...

Black borders visible when changing the screen percentage in VR mode (VR editor) to more than 100

UE - Editor - Workflow Systems - Nov 30, 2017

The black borders for the stereoscopic view are visible when increasing the screen percentage while in VR mode (VR Editor) ...

Engine Crashes When Building Lighting if Precomputed Visibility Aggressiveness is set to VIS Max

UE - Graphics Features - Nov 30, 2017

The engine crashes when building lighting if World Settings >> Precomputed Visibility >> Visibility Aggressiveness is set to "VIS Max." A Fatal Error message sometimes appears (screen shot attached) ...

Spline Mesh Component doesn't render if two spline points are directly above and below each other

Tools - Dec 1, 2017

Spline Mesh Component doesn't render if two spline points are placed exactly above and below each other. If they are offset by any value other than 0.0, the Spline Mesh component will be rendered as ...