Vertex Interpolate Node Doesn't Work with Lightmass

UE - Graphics Features - Lumen - Aug 8, 2018

The vertex interpolate node doesn't work with lightmass. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4258917 ...

Linux Native Toolchain depends on libninfo5 which is not bundled

UE - Platform - Linux - Sep 6, 2019

libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007fc27cf4d000) bschaefer@bschaefer-Precision-T7600:bin$ ldd ./clang linux-vdso.so.1 => (0x00007ffceefe3000) libpthread.so.0 => /lib/ ...

Contact Offset no longer appears to have an effect

UE - Simulation - Physics - Jan 15, 2019

When modifying the contact offset in a project it appears to have no effect. The setting that worked in a previous engine version (4.19) now collide in the same way as the default settings. ...

bStaticWhenNotMoveable in Lighting category instead of Physics

"UPrimitiveComponent::bStaticWhenNotMoveable"'s category is set to Lighting, not Physics. This causes it to be hidden when lighting-related properties are hidden, even though it controls physics sta ...

Toggling Vertex Colors on in Static Mesh Editor makes the viewport all white

UE - Gameplay - Aug 4, 2016

When turning on the Vertex Color option in the static mesh editor, the whole viewport turns white. ...

Lighting channels are not supported with tiled lighting

UE - Graphics Features - Aug 15, 2016

Reported via UDN ...

VR PIE preview - output does not resize when window is scaled

UE - Platform - XR - Feb 3, 2020

VR PIE output no longer resizes when window is scaled. Confirmed with Rift and Vive Confirmed in 4.25 MAIN @ CL 11196267 ...

Clearcoat shader disappears if any asset using the Material leaves lighting

UE - Graphics Features - Aug 19, 2015

Clearcoat Shader will stop receiving lighting information if any mesh assigned the material using the shader leaves lighting. Also Reproduced in Launcher 4.9 Preview 4, Main-CL-2660934 [Image Remo ...

OSVR does not consistently render to HMD if OSVR Server is not open prior to opening editor/cooked game

UE - Platform - XR - May 18, 2016

It seems like if OSVR_Server is not launched prior to opening the editor, vr-preview functionality will not work (even though the editor starts OSVR_Server at launch). Seems like server must be open ...