Unreal Engine Issues

Mac Crash when foliage painting in QAGame with TallGrass_01 asset

This crash seems to only be reproducible using the TallGrass_01 asset in QAGame. Having other foliage assets selected sometimes prevents the crash, but usually any combination of assets plus TallGra ...

Crash when launching a packaged project where a code class gets a reference to a Blueprint widget that contains an instance of a Blueprint struct

A packaged project will crash on launch if a code class uses ConstructorHelpers::FClassFinder to get a reference to a Blueprint Widget that contains a Blueprint struct variable. Disabling EDL in the ...

Deploying from Windows to Linux fails on the first attempt

After hitting this failure, if you try to deploy again, then it will work. This only occurs on the first attempt. Initially, I thought I hit a disc space issue I was hitting due to having a sample ...

Debug filter UI does not updated immediately when selecting a different actor instance

In the blueprint editor, the Debug Filter UI does not updated immediately when the user selects other actor instances in the level. This can result in the wrong instance being listed as "(Selected) ...

Strange crash occurring from project When upgrading from 4.16 to 4.17

There are a string of crashes that are occurring with UMG as the cause of the crash. This occurs when the project is upgraded from 4.16 to 4.17. With the project provided making any change to the B ...

Ensure playing in viewport after closing blueprint and undoing component rename

Ensure occurs when the user undos the renaming of a component while the blueprint is closed, and then plays in viewport. ...

DeterminesOutputType metadata does not work for soft reference types (TAssetPtr / TAssetSubclassOf)

It looks like FDynamicOutputHelper::IsTypePickerPin and FDynamicOutputHelper::GetTypePickerPin need to be updated to support soft references. ...

Editor crashes if you remove cloth from a mesh with a section selected and then close and reopen the mesh

Wireframe box does not appear when adding blueprint of custom volume class to the viewport

No volume appears when adding a blueprint of a custom volume class to the viewport. Adding an instance of the custom class directly does show the box, but additional functionality cannot be added v ...

Selecting Don't Save when launching onto platform still gives the impression that assets were saved

If the user selects Don't Save when launching on to a platform, the dirtied assets appear as saved in the editor (no asterisks next to map names or asset thumbnails). This can be confusing, because ...