A Geometry Collection with Removal-On-Break, after breaking and shrinking until vanished, will reset to the original state (full-size and unbroken) if we toggle between Fullscreen and Windowed while playing as standalone or Packaged Build.

UE - Simulation - Physics - Destruction - Oct 28, 2024

A Geometry Collection with Removal-On-Break, after breaking and shrinking until vanished, will reset to the original state (full-size and unbroken) if we toggle between Fullscreen and Windowed while ...

Live Link Face Connection Could Not Be Established in UE5 with MetaHuman Exported Directly From UE Quixel Asset Browser

UE - Virtual Production - IO - LiveLink - Apr 6, 2022

Occurs 5/5 times. A Facial LiveLink could not be established between the MH Facial Anim BP and the LiveLink iOS app using //UE5/Release-5.0 EGL Live. Regression occurs: When tested in UE5EA a Live ...

In blueprint component details not showing after changing component class

UE - Gameplay - Blueprint - Mar 31, 2022

It was noticed that after changing the class of the component and restarting the editor, the Detail panel is no longer displayed, which makes it impossible to work with it. Repro Rate 5/5 Regressi ...

Child widgets do not maintain the Enhanced Input bindings from their parents

UE - Gameplay - Input - Apr 9, 2025

Test content for this bug is in the /EnhancedInputTesting/UE_268605/EnhancedInput_UE268605 level in QAGame! When a widget blueprint is created with Enhanced Input bindings in the event graph, whe ...

Crash undoing variable change in Animation Blueprint.

OLD - Anim - Aug 1, 2016

Crash occurs when the user changes a variable in the animation blueprint, and then undo's the change. Note that this occurs with any variable being used, but the callstack will be some what differe ...

Multiplayer Shootout project sample is crashing on start

Docs - Samples - Apr 3, 2015

The project sample Multiplayer Shootout in the Learn tab is crashing on start up with 4.7.4 Crash does not occur on 4.8. Tested by Patrick.D on Main CL-2498147 Pass in 4.7.5 dev. - CKC 2503383 ...

Widget Component Variable can not be changed to Public with Instance Editable

UE - Editor - UI Systems - Mar 2, 2023

This is not explicitly a regression from 5.0.3. In 5.0.3 the component variable is set to public with instance editable by default and can not be changed. Tested in //UE5/Release-5.0 CL20979098 Any ...

The process may not return to the root node after the Wait Task is completed.

UE - AI - BehaviorTree - Sep 14, 2021

If the Wait Task is completed for the first frame, it may not return to the root node even after Finish. This can be avoided by increasing the wait time of the Wait Task (see CaseOK.mp4). When this ...

Volumetric Cloud + Sun ghosting artefacts around a static cube

UE - Graphics Features - Feb 3, 2022

Video of the issue here - [Link Removed] 4.27 and 5.0 seem to display slightly different outcomes. In 5.0 the sun only appears very close to the cube, whereas in 4.27 is can appear a bit further ou ...

Fix up IOS errors calling UI API from non-UI threads

UE - Platform - Apple - Jul 27, 2020