UFE: Can't delete custom launch profiles

UE - Editor - UI Systems - Jul 26, 2023

The confirmation message will fails spawning with the following messages in the log:  [2023.07.25-20.04.01:038][  0]LogWindows: Error: Failed to create dialog. The specified resource type cannot be ...

Bug with control rig display name and sequencer

UE - Anim - Anim in Engine - May 17, 2024

Control Rig Tracks are not visible in Sequencer when the Name and Display Name are not set to the same value in the Control Rig graph, and the track filter is set to "Selected Control Rig Controls". ...

Screen Probes and Specular Firefly Flickering near screen edges

UE - Graphics Features - Lumen - Aug 6, 2024

Lumen's rough specular indirect lighting buffer can have fireflies along the bottom and right edges of the screen. Also tested in //UE5/Main, CL: 35177423 ...

Iris - Missed subobject destruction can cause incomplete client state

UE - Networking - Iris - Oct 7, 2024

From UDN assigned to [Link Removed]  ...

Vector VM - Crash / memory stomp when using > 255 external function calls

UE - Niagara - Aug 12, 2025

The Vector VM has only every supported a byte's worth of external function calls, when we blew the limit it would index into the incorrect VM call. The new VM will also overwrite memory when exceed ...

Sequencer crashes when using Transform variable added to Scene component BP

UE - Anim - Sequencer - Oct 18, 2021

This issue has not occurred in previous versions and seems to occur from 4.27. ...

Reset Instance Changes to Blueprint Default does not revert changes made to instances

UE - Gameplay - Blueprint - Sep 15, 2015

creating an instance of a blueprint and making changes to the instance will not respect "Reset Instance Changes to Blueprint Default" when pressed from Details Pane. ...

Timeline name changes do not propagate to related nodes

UE - Gameplay - Blueprint - Mar 17, 2015

Timeline name changes do not propagate to related nodes. Refresh All does not rename nodes that reference the timeline, and Getters and Setters are no longer valid nodes. Reproduced in 4.7.2 binary ...

LIVE: Print string not working when nav mesh bounds volume information is pulled up

UE - AI - Nov 12, 2014

After place a Nav Mesh Bounds Volume into a level, launching the game and pressing the [ ' ] key to show information about the Nav mesh the print string stops working. If the User closes the game w ...