Ensure triggered inside Range Struct Customization when Property Node is no longer valid (e.g. when editing FFloatRange while FRuntimeFloatCurve editor is visible) [Ref. UE-341339]

UE - Editor - Verse Class Editor - Nov 12, 2025

[Link Removed] Closed was fixed by CL 46990575, successfully avoiding an ensure condition inside FIntervalStructCustomization::S ...

Saving a Slate Vector Art asset causes a crash

UE - Editor - UI Systems - Mar 17, 2022

Saving a Slate Vector Art asset causes a crash. ...

Load String fails to load when launched onto a mobile device

UE - Platform - Mobile - Mar 1, 2016

If the user uses the node load string and then launches onto a device than the web browser will be blank. Note: This node appears to work fine in editor ...

Spin box does not receive input in mobile preview

UE - Editor - UI Systems - Sep 9, 2015

When using a spin box in mobile preview, the spin box does not appear to update. It will highlight when the mouse is over it but clicking and dragging will yield no value changes. ...

Cannot click buttons in the upper left corner when using PIE

UE - Editor - UI Systems - Feb 27, 2015

The click for mouse control button overlaps the upper left corner making it hard to click buttons in the upper left corner when using PIE. The button to give mouse control take priority. ...

Text box events (OnTextCommitted and OnTextChanged) are throwing false warnings

UE - Editor - UI Systems - May 11, 2015

If the user creates an OnTextCommitted event or an OnTextChanged event the user will receive a warning upon compiling the blueprint. Warning received: Warning No value will be returned by referenc ...

Changing ColorAndOpacity in Text using AutoKey do not create new keyframe.

UE - Anim - Sequencer - Feb 7, 2017

This is not reproduced in Shadow Color section. Since ShadowColorAndOpacity is FLenearColor and ColorAndOpacity is FSlateColor, this prevents adding new keys in ColorPropertyTrackEditor.cpp FColo ...

OnPaint function causes artifacts to show up in a New Editor window

UE - Editor - UI Systems - Jun 17, 2015

If the the onpaint function is used it can cause the top and left sides of the screen to retain artifacts. Attached image for reference. ...

Mouse Up Detection lost inside Scrollbox when dragging

UE - Editor - UI Systems - Feb 28, 2017

Mouse Up Detection lost inside Scrollbox when dragging and releasing inside. This issue occurs when trying to detect on mouse up for a scroll box Regression: This issue also occurs in 4.14.3 ...

Visual inconsistencies when zooming in/out in the designer tab

UE - Editor - UI Systems - Jun 9, 2017

Visual inconsistencies when zooming in/out in the designer tab. In the example provided. There is a vertical box containing sever images with a top padding of 1. When zooming in and out of the graph ...