Creating Widget at run time with an exposed variable causes Engine crash with Assertion

Tools - May 8, 2020

If you are using the default values of the In Size the project will run fine, but changing the values will make the engine crash. This was reported and tested in 4.25 (CL-13144385) and reproduced i ...

Replacing blueprint assets causes editor to crash

UE - Gameplay - Blueprint - Jun 1, 2015

When attempting to replace references of one blueprint with another a number of error message windows pop up ([Link Removed]) and the editor will crash. This is a regression since it was working in ...

Editor Utility Widgets: Asset creating nodes' output pins in uber graphs cause asset deletion warning

UE - Framework - Blueprint Runtime - Oct 8, 2024

Editor Utility Widgets (EUW) can be used to script editor behavior. One use case is the automation of asset creation. A licensee has reported that when an EUW is used to create an asset, for as lon ...

Throbber widget could eat up all of your RAM

UE - Editor - UI Systems - Jan 22, 2015

A user has reported that they could BSOD (Blue Screen Of Death) their computer by putting in 999999999999 as the number of pieces for the throbber widget. While I was unable to produce this on our s ...

Widget text fields to not remain highlighted after making changes

UE - Editor - UI Systems - Mar 6, 2019

When making changes to the properties of widgets in the details panel, the text fields to not remain highlighted. This functionality appears present in other areas of the engine. Such as when dealin ...

Widgets stick out from letterboxed player screen on 4.25

UE - Editor - UI Systems - Sep 28, 2020

Note:   Clipping on letterboxed player screen works fine on 4.24.   This issue was brought in by CL#10541213. Here's a workaround TSharedPtr<SGameLayerManager::FPlayerLayer> SGameLayerManager::Fin ...

Sequencer track appears to skip the first frame on an animation in UMG

UE - Anim - Sequencer - Jun 17, 2019

A sequence created in UMG appears to skip/ignore the first frame. If an event is set to fire off on the first frame of the sequence it will not fire. ...

Material Parameter Collection does not correctly render in Widget BP

UE - Editor - UI Systems - Feb 23, 2015

If a Material Parameter Collection with a Scalar Parameter is used within a material and that material is called within a widget the scalar parameter will render with a 0 value, even when set to ano ...

Cannot assign a MediaTexture asset to a Brush -> Image in Widget Blueprint

UE - Virtual Production - Media - May 23, 2023

Can't assign Media Texture assets to the Brush->Image property in Images on Widget Blueprints. This workflow is explicitly mentioned as a step in these docs, so if this is no longer the correct meth ...

Widget Components Add Thin Black Outlines to Images

UE - Editor - UI Systems - Dec 13, 2019

When a slate element that uses a png with a transparency the edges have a black outline. When the Widget3DPassThrough material is applied to the widget the effect is lessened, but is the outline sti ...