Water line misaligned if Screen Percentage is less than 100% while Temporal Upsampling is enabled

UE - Graphics Features - Dec 7, 2021

Water line is misaligned if screen percentage is less than 100% while Temporal Upsampling is enabled. ...

Double clicking the thumbnail for a TSoftObjectPtr to a UWorld will load the level without prompting the user to save

UE - Editor - Dec 6, 2021

Currently, double clicking on a thumbnail for a SoftObjectPtr to a UWorld will load that level in the level editor without checking if the current world is dirty or prompting to save. This can resul ...

Ray traced reflections skewed with un-combined meshes

UE - Graphics Features - Dec 2, 2021

Audio section has incorrect duration when pitch is changed.

UE - Anim - Sequencer - Nov 29, 2021

Sequencer determines audio duration based on the sound, which does not factor in pitch information, so the duration will be incorrect, leading to incorrect playback. ...

UAnimInstance::GetInstanceTransitionTimeElapsed does NOT consider TransitionIndex

UE - Anim - Runtime - Nov 29, 2021

GetInstanceTransitionTimeElapsed doesn't use TransitionIndex. float UAnimInstance::GetInstanceTransitionTimeElapsed(int32 MachineIndex, int32 TransitionIndex) { // Just an alias for readabili ...

The drawing order of widgets becomes wrong when GlobalInvalidation is enabled,

UE - Editor - UI Systems - Slate - Nov 26, 2021

When trying to create a widget with specific steps, the drawing order may not be correct. This is not reproduced when Global Invalidation is disabled, and the state can be restored. This issue is pr ...

[Audio Analysis][Ensure] - Sound Submix Spectral Analyzer Delegate Throws Ensure when Analysis Started Before the Delegate is Added

UE - Audio - Nov 25, 2021

Hit the following Ensure when trying to use the Spectrum Analyser. Also hit this in 4.26 so it doesn't appear to be a regression. Occurs with any of the following Band Settings or when creating you ...

Problem importing broken FBX

UE - Editor - Content Pipeline - Import and Export - Nov 25, 2021

An FBX exported from 3DEXCITE DELTAGEN fails to parse correctly in the latest FBX SDK and crashes the UE importer. This FBX is automatically repaired when loaded into Maya (citing "polygons with ov ...