Unreal Engine Issues

New C++ Class (actor) fails to build

While trying to create a C++ actor to test if it can be created with a custom Copyright notice specified in Project Settings, the Live Coding window returns a "Build failed" and error of: "ERROR: U ...

Moving a Widget in UMG by dragging the position value results in Stuttering and Jerking

This is a regression. Tested in //UE4/Release-4.27 CL#18319896 Moving widgets within UMG by dragging the position value with any sort of speed results in the widget stuttering and jerking around.  ...

Combined Translate and Rotate Mode broken when using Local Space

From UDN: When using the Combined Translate and Rotate Mode we run into an issue where the rotation arrow moves twice as fast as the coordinate frame. The object itself rotates correctly, but if we ...

History window does not show full history for branched files with Perforce

Restore Packages window opens a Source Control warning window for Autosaved Maps

There has been some inconsistencies with the autosave feature. Letting a map auto save doesn't save the map and when you attempt to restore the map, an error message pops stating that it was "Unable ...

Mouse dragging cursor accelerates significantly on Mac

This also occurs in 4.14.3 This does not occur on Windows. Could not get this issue to reproduce while recording the screen with quicktime player, but if you experience it in person it really feel ...

Sequencer Render: Animation not updating for a moment on camera cut

When rendering from sequencer to an image sequence, character animation stops for 2 frames after a camera cut. This hitch does not occur when playing the sequence in PIE I've attached some sample d ...

Arabic characters not showing correctly when using some text based widgets

Arabic characters do not appear to render correctly in text widgets and text box (Multi-line). They instead appear as box like character with the word "Arabic" and a random set of numbers and letter ...

Overriding a Custom function(From Parent) with no return output in a Child Blueprint results in custom function appearing in event graph of child blueprint.

Overriding a Custom Function from a Parent Blueprint with no return output in a Child Blueprint results in custom function appearing in event graph of child Blueprint. ...

Mouse collision is offset when fullscreen at non-regular resolutions

The source of the issue is differences between viewport resolution and screen resolution. Cursor position is reported w.r.t. screen space, but we need to map that value to the viewport to correctly ...