Cannot Scroll down to events with advanced options expanded

UE - Editor - UI Systems - Slate - May 31, 2017

When using UMG and enabling advanced options then deselecting and reselecting the asset can cause issues with the scrollbar length and cause some options to be initially cut off. The scrollbar then ...

WebBrowser SetVisibility not working on Android & iOS

UE - Platform - Mobile - May 29, 2018

SetVisibility not working with Web Browser Widget on mobile devices ...

UV Offset Effect Material in RetainerBox Causes Visual Artifacts in Editor Preview

UE - Editor - UI Systems - UMG - Apr 22, 2025

When a UV Offset is applied in a RetainerBox effect material, visual artifacts appear only in the editor — not at runtime — if a widget with a dotted preview outline (like CanvasPanel) is placed dir ...

D-pad does not trigger the On Key down function to fire off

UE - Editor - UI Systems - Mar 28, 2016

D-pad does not trigger the On Key down function to fire off when using UMG ...

Check box appears darker when wrapping it with a button

UE - Editor - UI Systems - Oct 9, 2017

Check box appears darker when wrapping it with a button (almost black), This does not appear to happen when wrapped with other widgets. ...

Crash occurs when after resuming from a Breaking Point that has been placed on an On List Item Object Set node

UE - Editor - UI Systems - Slate - Oct 13, 2022

Tested in: //UE5/Release-5.1 CL22346211 Crashed with Assertion //UE5/Release-5.0 CL20979098 Crashed with Assertion Crash occurs when after resuming from a Breaking Point that has been placed on an ...

Spawn and Register Tab and Get ID Produces Unbounded Length IDs

UE - Editor - UI Systems - Jun 18, 2023

Spawning Editor Utility Widgets via Spawn and Register Tab and Get ID inside another widget creates unbounded length IDs that get progressively longer with each subsequent spawn, as the ID is append ...

EditDefaultsOnly is overriden by meta specifier MakeEditWidget

Tools - Sep 29, 2016

When the meta property "MakeEditWidget" is used in conjunction with EditDefaultsOnly, instances of the variable in the level can be edited by selecting the widget and using its transform gizmo. ...

Cannot copy and past from a multi-line text box after being launched to a web browser

UE - Platform - Mobile - Dec 28, 2015

The user can not copy and past text from a multi-line editable text box after it has been launched onto a web browser. As a note, it is is possible to copy and paste when the widget is used in the e ...

Package fails to load due to EditorOnly data when launched onto Mac or Windows

UE - Foundation - Core - Jun 28, 2017

LogPlayLevel: QAGame: [2017.06.28-14.09.14:706][ 0]LogLinker:Warning: Unable to load package (../../../QAGame/Content/UMG/UMG_Sprite.uasset). Package contains EditorOnly data which is not supported b ...