Unreal Engine Issues

C4D import, missing materials

cf. https://forums.unrealengine.com/t/texture-problem-with-c4d-import-datasmith/272840 ...

Project launcher splash does not disappear after project opens on Linux

When a project is opened in the 4.11 preview on Linux, the boarder for the splash screen will remain open until manually closed (right click->quit). ...

Struct Viewer will display duplicate structs after a rename

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Mesh with material where the translucency pass is set to Before DOF are not render correctly if r.SeparateTranslucencyScreenPercentage is set to a value != 100

SceneDepth failed with MSAA on PC Mobile Preview

In PC ,RHICreateTargetableShaderResource2D will create SeparateTarget and ShaderResource, and after basepass resolve depth from TargetableTexture to ShaderResourceTexture. But in mobile preview,  ...

Pink lighting artifacting on Mac

There are pink lighting spots around the level when opening ContentExamples on Mac. Lighting starts out more intense but fades as the level loads in. Also occurs in new FirstPersonBlueprint templat ...

Video material broken on Mac M3+ (sm6)

On Mac devices, the video material in the viewport will display incorrectly, appearing stretched significantly. This only seems to affect the viewport and not rendered exports. ...

Material expression "FloatToUInt" can trigger a check() when input is invalid

When a "Float to UInt" Expression is used in a Material Graph with a valid direct input connection that fails to evaluate, function UMaterialExpressionFloatToUInt::Compile() does not catch the input ...

Cascade ParticleRelativeTime Outputs Constant 0 on Mobile

Cascade ParticleRelativeTime outputs constant 0 on mobile. Found in 4.19 CL# 4033788, 4.20 CL# 4302132, 4.21 CL# 4321618 ...

Recent change to Material Expression code missing a case for "exp2" function in switch (cpp)

The function "FMaterialDerivativeAutogen::GetFunc1ReturnType(...)" does not have a case for "EFunc1::Exp2". Also found in Release-5.4, CL: 331987674 ...