FVulkanDynamicRHI::RHIReadSurfaceData​ incorrect for FLinearColor​.

UE - Rendering Architecture - RHI - Mar 4, 2024

The FLinearColor implementation for FVulkanDynamicRHI is incorrect. FLinearColor stores 32 bit floats in linear space, while FColor stores 8 bit integers encoded with sRGB applied. The implementatio ...

When duplicating multiple actors with alt+drag, Translation/Rotation widget goes to incorrect coordinate space

UE - Editor - Workflow Systems - Mar 4, 2024

Note: This bug has been observed in all tested engine versions, from UE 4.24 to UE 5.3 and in ue-main. When shift+selecting multiple actors in the Level Editor, the currently-active transformation ...

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 ...

Skeletal Mesh reduction clamps UVs at 1024

UE - Anim - Rigging - Mar 4, 2024

UAssetManager::ChangeBundleStateForPrimaryAssets: Performance: Avoid canceling loads in progress when new bundles added and the in progress bundles are kept

UE - Foundation - Core - Cooker - Mar 4, 2024

UAssetManager::ChangeBundleStateForPrimaryAssets allows adding new BundleNames to the list of BundleNames loaded for a PrimaryAssetId. Each BundleName specifies a BundleEntry with a list of assets. ...

Sequencer fails to play anim sequences on linked anim instances when an Additve/Layered FKControlRig track is active

UE - Anim - Sequencer - Anim in Engine - Mar 2, 2024

Animations can't be played with Sequencer via slot nodes in linked anim graphs when an additive/layered FK Control Rig is active.  This is because adding an FK Control Rig changes the anim instance ...

View Changes: external changes desync state and trigger checks

UE - Editor - Workflow Systems - Mar 2, 2024

External changes to source control are causing state desyncs which get expressed in code as multiple operations on the same items in the same UI visit. This check is in place because when only using ...

ASan on iOS is broken

UE - Platform - Apple - Mar 1, 2024

Address Sanitizer (asan) is currently not working on iOS. This could be a helpful feature to get working again. ...