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] ...

Changing the skeletal mesh asset in sequencer causes animation to reset for a frame (T-Pose, A-Pose) if using Custom Mode

UE - Anim - Sequencer - Feb 21, 2024

This seems to be a timing issue. When using an anim BP this does not happen, and when switching meshes through an event track setting the track's event position to At Start of Evaluation resolves th ...

Launching iOS build from Xcode fails after initial install

UE - Platform - Apple - Feb 21, 2024

Xcode has an issue with repeated launches onto an iOS device.  After the initial install, Xcode is unable to install any other builds of that same app due to some sort of codesigning issue.  A work ...

ResavePackages Commandlet Consistently Crashes in 5.3 In Material PreSave

UE - Rendering Architecture - Materials - Feb 20, 2024

Running the ResavePackages commandlet will consistently result in a crash. The callstack is here: Assertion failed: !IsRooted() [Link Removed] [Line: 265] UnrealEditor_Engine!UMaterialInterface::P ...

Exponential Editor Slate Performance Cost When Editing An Asset With Nested Instanced Structs

UE - Editor - Workflow Systems - Feb 20, 2024

UDN Issue: [Link Removed] ...

CharacterMovementComponent: make crouching behavior compatible with custom gravity direction

UE - Gameplay - Components - Feb 20, 2024

CharacterMovementComponent has recently received support for custom gravity directions. Crouch logic needs to be updated to account for custom directions. Currently, crouching logic in CMC assumes Z ...

Derived struct data is not copied to Base struct

UE - Gameplay - Blueprint - Feb 19, 2024

The actor Blueprint is intentionally causing an object slice to occur. In other words, we're copying a derived type to a base type, so the expectation is that only the inherited base properties are ...

[Datasmith] Geometry in specific wire file is not tessellated

UE - Editor - Content Pipeline - CAD - Feb 19, 2024

UDN - Crash reverting SkeletalMesh unsaved changes

UE - Editor - Content Pipeline - Asset Build - Feb 19, 2024