LineTraceSingleByChannel does not correctly use the collision response set for the channel being traced on

Physics - Nov 28, 2017

There appears to be an issue with how raycasts are performed within PxScene. When performing the trace, only the collision response for the first ECollisionChannel seems to be considered. If all col ...

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

Rendering - 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 ...

[CrashReport] UE4Editor_Engine!CheckSingleJob() [shadercompiler.cpp:749]

Rendering - Nov 21, 2017

This is a common and longstanding crash that has occurred since at least 4.14. Users have not provided any useful descriptions of their actions when the crash occurred. Source Context 740 ...

Inaccurate Collision is Generated When Using Multi Convex Hull (PhysicsAsset Editor)

Physics - Nov 17, 2017

Multi Convex Hull created bodies that are not as accurate as in version 4.17 on skeletal meshes ...

Cannot run packaged project if a code class contains a static FSimpleElementCollector variable

Rendering - Nov 17, 2017

Adding a static FSimpleElementCollector variable in a code class prevents the packaged project from running. No log is created. ...

Editor UI lightens when r.HDR.EnableHDROutput is set to 1

Rendering - Nov 15, 2017

When console command r.HDR.EnableHDROutput = 1 is used, the entire engine UI becomes lighter or more washed out / desaturated, as shown in attached screen shots. Confirmed this bug is not present i ...

Certain Materials do not render on Destructible Meshes in Standalone and Packaged projects

Core - Cooker - Nov 10, 2017

Certain Materials do not render on Destructible Meshes in Standalone and Packaged projects. I'm unsure of the exact cause but disabling "Used with Skeletal Mesh" in the materials Details panel, then ...

Hot reload causes placed actor to lose variable references

Core - Hot Reload - Nov 9, 2017

Preforming a hot reload causes placed actors to lose code based variable settings. More repro steps: 1. Open UE4Editor.exe 2. Create a First Person Code project 3. Build the project for Developme ...

Edited BP Variables show as "Multiple Values" in instanced reference

Gameplay - Blueprint - Oct 30, 2017

When a blueprint (A) contains a instanced reference to another blueprint (B) that is EditInlineNew, changing a value B causes the associated variable in A to display as "Multiple Vaules" Workaround ...