Unreal Engine Issues

Objects are not cleaned up after gc when dragging a propery on a blueprint that reruns construction scripts

It appears that the editor's memory usage can jump by as much as a 1GB when using a spinbox in the editor. This also has the side effect of causing the editor to freeze/hang temporarily Note: The j ...

Naming a category for a function the same name as a function can cause the My Blueprints tree to display incorrectly (making the category heading look like a function)

Cine camera doesn't expose the bConstrainAspectRatio toggle in the details panel

Rebuild (with hot reload) fails on newly-created projects

Performing a Rebuild with a hot reload on a brand new code project will fail unless both the Editor and Visual Studio have first been closed and then re-opened. The same result occurs if a Clean is ...

Selecting For Distribution no longer sets configuration to Shipping

It looks like the change to remove the configuration lock may have changed this behavior, too. It's important to set the configuration to Shipping because otherwise users will ship games accidental ...

Interface Message Call does not work correctly with ExpandEnumAsExecs meta specifier

When using ExpandEnumAsExecs for the execution of a BlueprintImplementableEvent in a C++ interface, if the interface function is called by message, the result will always be as though you executed t ...

[Feature Request] Cook in the Editor should only save Asset Registry for the cook target platform

Request from Licensee: When launch Launching in the editor, it seems that asset registries of platforms other than those specified in Launch are also generated.  LogAssetRegistryGenerator: Startin ...

Launching a packaged game will cause it to open on the leftmost monitor, ignoring your primary monitor

A licensee has reported that opening a packaged game in 4.18 and onward will cause the packaged game to appear on their left most monitor, rather than their primary monitor. This was not the case in ...

Primitive Render Mode has bad enum name and tooltip

There is an extra option for the Planar Reflections with the Primitive Render Mode that appears to have the tooltip legacy. This issue does not appear to be a regression. Versions Tested: Issue occ ...

Destructible mesh loses collision and physics after packaging in 4.18.2

Destructible Meshes are losing collision and physics after a project has been packaged. They will work normally when running PIE. ...