Unreal Engine Issues

Nanite mesh polygons disappearing when using masked opacity with vertex color in 5.4

In 5.4.3, a nanite enabled mesh with a material that takes its vertex color (R) and uses it as the opacity mask output in a masked blend mode material, causes the mesh to have disappearing polygons ...

Launching the editor with -d3ddebug and enabling LOD Coloration mode gives D3D11 DEVICE_PSSETSHADERRESOURCES_HAZARD warning

Launching the editor with the "-d3ddebug" command line option and then enabling the "LOD Coloration" view mode (under "Lit") results in the following D3D warning: D3D11 WARNING: ID3D11DeviceContext ...

Editor Crashes when enabling Vertex Colors on an imported Skeletal Mesh with Morph Target Animations

Licensee wants to be able to import skeletal meshes which have Vertex Colours (their entire game is Vertex Coloured) and Morph Target animation, but they're seeing a crash when toggling Vertex Color ...

Crash when compiling Blueprint class based off C++ actor with a Niagara component that has a user color curve

When creating a blueprint class based on a C++ actor with a Niagara component, color curves will cause the editor to crash when compiling the blueprint. This will impact users creating their own cla ...

Shader compilation failure crash with DX12, Tesselation, Distance fields, Instanced Stereo, and Hierarchical LOD Coloration viewmode

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue wasn't reproduced. Regression - YES Shader compilation failure crash with DX12, Tesselation, Instanced Stereo, and Hierarchical ...

Fbx Importer: Need to clamp incoming vertex color

When OpenGL ES 3.1 is enabled for Android build in Handheld AR Template, camera inverts colors

When OpenGL ES 3.1 is enabled in Android Build settings, device prompts user to choose to "Allow ARInvertColor to take pictures and record video". If allowed, colors are inverted by the camera. If ...

Sequencer doesn't update Light color track

Rainbow Colored Lights On Edge Of Screen

While in the Editor glowing colored lights will appear at the edge of the screen. (see screenshot)This happens randomly after a set amount of time even when Idle.The issue doesn't occur in standalon ...

SET_WARN_COLOR does not colorize the Output window

User is trying to use SET_WARN_COLOR to highlight lines in the output window, but it's not working. ...