Unreal Engine Issues

Cooker Generated Packages: Actors can trigger the "load" of generated packages from linker load and load them incorrectly

Generated packages have to be constructed by the cooker via FGeneratorPackage::CreateGeneratedUPackage. Some fields on the UPackage are set and ICookPackageSplitter->PopulateGeneratedPackage is call ...

[CrashReport] Mac crash - UE4Editor-AudioEditor.dylib!FSoundCueEditor::DeleteInput()

This is an infrequent Mac crash that has occurred for users since 4.16. Users have not provided any descriptions of their actions when the crash occurred. There is no record of a similar callstack ...

Crash when committing level instances containing invalid child actor components

Bloated instruction counts in the material editor causing long compiles

artists are dealing with greatly increased iteration times due to long shader compiles when working in the material editor. This has regressed over time as we add more features to the point were wor ...

The origin appears to shift for 3D widgets when the anchors (in the widget blueprint) and the pivot (in the widget component) are changed

If The user is using an anchor that is not the top left and then changes the pivot of a widget component the result is a 3D widget that has an offset origin making it very difficult to interact with ...

Cannot click widget components with "Use Mouse for Touch" enabled

Users cannot click widgets components when the user has enabled "Use Mouse for Touch" ...

[CrashReport] UE4Editor_Sequencer!FSequencer::NotifyMovieSceneDataChanged()

This is a common crash affecting users in 4.16 and into the 4.17 Preview. User Descriptionscopying-pasting curves in Sequencer Source Context 979 void FSequencer::NotifyMovieSceneDataCha ...

Gamepad "A" and directional-pad keys are not detected

Gamepad "A" and directional-pad keys are not detected when used within a sub widget. Test project link: [Link Removed] ...

Widgets With Retainer Boxes Are Selected When Behind Widgets Without One

When a widget that has a retainer box is behind another widget that doesn't have one it will call it's onclick instead of the one in front of it in the UMG when clicked (see attached gif). This beh ...

UMG widgets aren't cleared when levels are swapped via 'open LevelName'.

If a level has UMG widgets, swapping to other levels (including the level you're already on) doesn't clear away the UMG widgets. ...