Unreal Engine Issues

An event with Soft Class Reference as an input that is not set causes package to fail with Nativization

Having a custom event with an empty Soft Class Reference as an input causes packaging to fail if nativization is enabled as the event nativizes with a const TSoftClassPtr<>& and the compiler cannot ...

Clickable widgets fail to function as UWidgetComponents in standalone

When in standalone, any widget that takes a click event doesn't respond properly to user input. Tested in 4.19(CL - 403788), 4.20(CL - 4228271), and 4.21(CL - 4229747) ...

Renaming or Moving a Map with a Landscape in it results in an error and fails to save map

When renaming or moving a map with a landscape in it this will fail and an error prompt will appear. ...

[ Rhino ] Missing Geometry when importing Rhino Nurbs Curve

Unable to use Steam Sessions with a source built editor from Github

Steam sessions are unable to be found in packaged games that use a source built editor from Github. According to users, this is related to the BuildId not being set properly so the packaged games ar ...

[CrashReport] UE4Editor_VREditor!AFloatingText::AFloatingText() [vreditorfloatingtext.cpp:99]

UPDATE This crash occurs when compiling shaders with a Floating Text asset in the level. Following the repro steps given above, the crash occurs each time opening the editor after forcing shaders to ...

r.SupportPointLightWholeSceneShadows Set to False Causes Crash When Trying to Place a PointLight

If you disable Support PointLightWholeSceneShadows and try to place a point light in a level the editor will crash.  Current work around is put shadows to low from engine scalability settings. Wor ...

Fix the skeletal mesh merge tool material assignment, change the API to avoid confusion

UDN user ask us to change the API for the material to remove confusion with the material ID. Also apparently there is an issue with the skeletal mesh merge tool, the user did not give any repro ste ...

Add Curve via Anim Modifiers not working

Toggling off the Gameplay Filter Tag causes all Content assets to be shown

Toggling off the Gameplay Filter Tag causes all Content assets to be shown in the Content Browser. This reported and tested in 4.19.2 (CL-4033788) and tested in 4.20 (CL-4212847) and Main 4.21 (CL- ...