SAnalogSlider moves slowly when step size is large

UE - Editor - UI Systems - Slate - Mar 6, 2024

SAnalogSlider calculates FastestStepTime by multiplying the step size value by a constant, resulting in high numbers for larger step sizes. This gets lerped from 1 and used as the repeat time, resul ...

PostLoadGroup can cause materials to cache GWhiteTexture into uniform expressions

UE - Rendering Architecture - Mar 6, 2024

It may occur that during loading screens, materials using material layers will load with GWhiteTexture before the real textures are ready. This seems to be because of a race condition due to PostLoa ...

MoverExamples: characters have 1-frame unnecessary extra input latency

UE - Gameplay - Player Movement - Mover - Mar 6, 2024

Due to the way input is handled on the MoverExamplesCharacter, including AnimatedMannyPawn, we have a delay in the time between when an input event occurs and when it is ingested by the movement sim ...

RenderTrace fatal error, shader expected a uniform buffer at slot 1...

UE - Rendering Architecture - Mar 4, 2024

RenderTrace plugin does not appear to have been updated for a change that moved the GPUScene out of the View buffer to its own uniform buffer. (CL 24027890) The test project is based on FirstPerson ...

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 ...

Physical Material Mask does not return the correct value

UE - Rendering Architecture - Materials - Feb 26, 2024

Placing a section at the end of montage is not properly handled

UE - Anim - Gameplay - Feb 24, 2024

Placing a  section at the very end of a montage with no duration or animation assigned after it is not properly handled.  Normally sections with 0 length are skipped and search continues since they ...

Can't inherit from ALight without a linker error

UE - Gameplay - Feb 22, 2024

This is a regression from 5.3. It should be possible to inherit from ALight outside of the engine module without any sort of errors. Case: [Link Removed] ...