Unreal Engine Issues

Duplicating an actor with a blueprint bound delegate behaves unexpectedly

When the trigger is duplicated, the contents of its OnActorBeginOverlap MC delegate are copied, which contains a reference to the BP actor that added the binding to the original trigger. Marking th ...

Landscape LocalMerge crash with PaintLayer enabled

[MetaSounds][Inputs] - When multiple copies of an input node are on the graph, all connections reconnect to one node when an input is renamed

If there are multiple copies of an input on the graph, when it is renamed, all the connections are broken and rerouted to a single node, orphaning the rest on the graph. I believe this may be a dupl ...

Adding a variable to a Structure after packaging then repackaging causes the package to fail

This is not a regression. Tested in //UE4/Release-4.27 CL18319896 Adding a variable to a Structure after packaging then repackaging causes the package to fail. ...

[Audio Capture] - Editor crashes when activating an Audio Capture component when there are no active input or output devices avilable

If a device has no available input or output devices, activating an Audio Capture component will cause the device to crash. Occurs in Editor and Runtime. Assertion failed: NumTotalFrames > 0 [File:E ...

SceneRender Memory leak on MacOS

SceneRender seems to be constantly leaking memory. It only reproduces on MacOS and doesn't seem to happen when I turn off the RHI thread. [Image Removed][Image Removed] ...

"Hiding Other Developer Assets" does not work when "Show All Folder" is enabled

In the implementation of FFrontendFilter_ShowOtherDevelopers, the developer folder is determined by whether the asset path starts with /Game/Developers/. However, when "Show All Folder" is enabled, ...

Physical Material Masks do not work in non-editor builds

Physical material masks are not working as expected in cooked builds. Licensee reports that the mask data is empty at runtime. ...

Template anim bps - FBoneReference anim node properties do not support different bone names

Currently nodes that use FBoneReference properties (slope warping, anim dynamics, modify bone, and a load of skeletal control nodes) can't have the bone they target changed when using template anim ...

Editor-only blueprints like WidgetBlueprint are not added to cooked asset registry class hierarchy

Both the Asset Registry and Asset Manager look for all subclasses of UBlueprintCore and use that to search for blueprint classes and construct an inheritance hierarchy. This always works in editor b ...