Unreal Engine Issues

Slate widget may incorrectly consume key up events causing some UI to get stuck

This is a bug reported from a UDN customer with a sample project and video attached that goes over the input consumption states and how they are incorrectly being set when changing UI modes ...

Ticking world for the anim montage sequence details preview scene in widget is prone to crash

UDN: ChildBP - When replacing Static or SkelMesh Compoent inherited from the Parent Class, Socket list doesn't update

This is simple, but maybe hard to explain, so hear with me. I've attached a sample project and Repro Steps below in case it's not clear. Basically: 1. Make BP_Parent with an unassigned Mesh (Stati ...

When creating a "Cursor" in UMG or HUD blueprints there is a noticeable lag mouse position and the "New Cursor" Position.

When setting up any sort of image to following the mouse there is a noticeable lag between the position of the mouse and the position of the image that is being set to the mouse position. ...

Mobile Previewer: Safe Zone Invalid Until Window Resize

When the Mobile Previewer loads, the Safe Zone widget is not working properly at startup, and requires a window resize to update to the correct Safe Zone. ...

Instanced object properties get cleared when compiling some (all?) types of Blueprints (Actor components and user widgets at least)

If an ActorComponent contains a UObject property of a type that is DefaultToInstanced, any time a Blueprint of a class containing that ActorComponent is compiled the UObject value is reset to None. ...

Material Vertex Interpolator with a scalar output is replaced by MCT_Float1 in the output translation which can cause arithmetic errors

If using BP that inherits DataAsset as Value of Map in Struct, it will be replaced with PLACEHOLDER-CLASS after restarting editor.

Pressing Ctrl+Shift+F in UMG designer mode will pop up a new tab named (unrecognized tab)

Web browser does not receive keyboard focus without needing to click

The Web browser widget does not appear to accept keyboard input until clicked. Even when opening a web page that has a text box that is selected by default (such as in the test project provided) and ...