Unreal Engine Issues

Shipping builds do not execute .exe

After playing with it and attaching in the debugger, it's sitting forever in MigratePreviousEngineIni(). It seems to be looping on DirectoryExists forever, likely here: while(PreviousVersion.GetMi ...

Using Attach To in Construction Script Causes the Editor to Crash

After creating a blueprint with a box trigger and a cube component, attempting to use an AttachTo (Box) node and then attaching the cube to the In Parent socket compiles without issue. However, if y ...

Virtual keyboard does not come up when using a widget that allows text editing

Virtual keyboard does not come up when using a widget that allows text editing ...

State machines get re-initialized after a montage has played

One idea was to add an option to Slot node to 'keep alive' the input pin, to avoid re-init like this. ...

Combo box does not function in packaged build

The ComboBox (string) element for UMG is not correctly displaying, The array options do not appear and can not be selected, for the packaged build, while PIE behaves as expected. Regression: This ...

Material static switch fails to retrieve correct value

Expose ULandscapeLayerInfoObject to blueprint as EditorApplySpline() blueprint function as an argument for this type

Expose ULandscapeLayerInfoObject to blueprint as EditorApplySpline() blueprint function as an argument for this type. Some testing might be required to be sure it's not assumed somewhere in the code ...

Namespaces are not removed when importing Skeletal Meshes from FBX, and breaks the importing of referenced Animations

Namespaces in skeletal mesh FBXs are coming in as prefixes to the bone name. This issue did not appear in 4.19.2 (CL-4033788), as seen in the attached picture. This issue was reported and tested in ...

Unimplemented Simplygon function causes empty mesh LODs and crashes

When we do the refactor for MeshDescription we miss the staticmesh reduction project settings option and change only the quadric reduction. There are two possible fixes for this issue: 1. Implemen ...

LLDB 2-byte char data formatter script fails in Android Studio

Android Studio does not properly parse the UE4DataFormatters_2ByteChars.py distributed in 4.20. ...