InstanceDecorators of URichTextBlock is increased everytime add it to viewport

UE - Editor - UI Systems - Jul 29, 2021

URichTextBlock::UpdateStyleData() does not check whether DecoratorClasses already had any specificed DecoratorClass. So every time you turn UMG on and off from the Viewport, Decorator Classes will i ...

Background blur missing with HDR CompositeMode 1

UE - Graphics Features - Jul 29, 2021

UPD: According to Affects Version field, issue reproduces in 4.26, Regression for 4.27 - No. ...

[Submix][Recording] - Existing Sound Wave to Overwrite option has no effect

UE - Audio - Submixes - Jul 29, 2021

This is an old bug that looks like it never made its way into JIRA. Adding for documentation.  ...

Movie Render Queue does not render letterboxes to exports with sensor aspect ratios between 16:9 and 1:1

UE - Anim - Sequencer - Jul 28, 2021

There is a discrepancy between how Movie Scene Capture (Legacy) and Movie Render Queue handle letterboxing for sensor aspect ratio's that do not match the export resolution, which seems to be a bug ...

ARCore: Handheld AR Template doesn't handle background/resume correctly

UE - Platform - XR - Jul 23, 2021

When the new template gets backgrounded and resumed, the app might not be fully functional at resume time. Sometimes the plane detection doesn't work. Sometimes the camera goes down. It's not very ...

Using PC_Enum instead of PC_Byte with CreatePin results in incorrect pin

UE - Gameplay - Blueprint Editor - Jul 23, 2021

This is a bug that can make it confusing for users (and internal devs) to make custom nodes related to enums.  This is occuring because the PC_Enum type was added after the original PC_Byte but  ...

USD Material variant selection is not reflected on mesh

UE - Editor - Content Pipeline - Datasmith - Importer - Jul 22, 2021

The material is expected to change from red to green. ...

Sky artefacts when Cast Cloud Shadows enabled

UE - Graphics Features - Jul 20, 2021

Reset Orientation and Position node doesn't work with OpenXR enabled

UE - Platform - XR - Jul 20, 2021

When using the ResetVR input action to reset the orientation and position of the camera, the input doesn't respond when using the OpenXR plugin. When disabling the plugin and enabling SteamVR or Ocu ...