Unreal Engine Issues

Crash when adding a streaming level to the world through Python

When using the Python plugin to add an existing level as a streaming level, the editor crashes. It seems that this happens regardless of what level is added or what the contents of that level are. A ...

Xcode project files use iOS Legacy Build System which is not supported in Xcode 13

The WorkspaceSettings.xcsettings file is generated with the following entry <key>BuildSystemType</key> <string>Original</string> This causes the warning in [Link Removed] which has was closed ...

InstanceDecorators of URichTextBlock is increased everytime add it to viewport

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

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

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

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 ...

Forward Rendering MSAA causes black outlines of meshes when partially occluding Sky Atmosphere

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

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

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

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