Investigate if iOS Remote Mac builds can be made without VisualStudio

UE - Platform - Apple - Dec 16, 2022

Currently, to build an iOS only app via Window's Remote Mac build system, Visual Studio needs to be installed, even though it isn't used to compile the iOS app.  Verify why VisualStudio is needed fo ...

Raytraced translucency makes ExpHeightFog black

UE - Graphics Features - Mar 17, 2023

Does not occur in path tracing nor rasterized translucency. ...

Decal can't sample 2D array

UE - Rendering Architecture - Materials - Aug 29, 2023

Decal materials have a compiler error when sampling a UTexture2DArray asset ...

Editor iOS rotation specifiers are not followed (especially Portrait)

UE - Platform - Apple - Oct 20, 2023

Specifying which orientations the iOS app supports are not honoured correctly.  ie: a landscape only game will still render in Portrait mode even when Portrait is disabled in the iOS Settings panel ...

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

UE - Editor - Content Pipeline - Datasmith - Mar 4, 2024

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

Assertion failed: ExportSettings == *ExistingExportSettings [File:D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\Lightmass\Lightmass.cpp] [Line: 546]

UE - Graphics Features - Sep 12, 2023

Generated from CrashReporter Logs can be obtained via Crash Reporter ...

Setting a poseable mesh component as leader component for a skeletal mesh component causes an access violation.

UE - Anim - Runtime - Jun 11, 2024

When a skeletal mesh component's leader component is set to a poseable mesh component, the application will run into an access violation when it tries to update animation curves and morph targets. ...

Material not compiling due to WorldAlignedTexture connected to multiply

UE - Rendering Architecture - Materials - Jul 23, 2024

When a WorldAlignedTexture node is connected to multiply and then to a base color output, the material cannot be compiled, giving an error about an undeclared local variable "Local27". Does not happ ...

Object Tracks in SubSequencer Lose References When Blending is Enabled

UE - Anim - Sequencer - Apr 4, 2025

We're encountering an issue when using object tracks in subsequencer. When enabling blending on a subsequencer section, the object reference resets throughout the entire duration of the track. Inte ...