Changing the Resolution scale in Engine scalability can cause actors to be offset when ejected from the player controller

UE - Graphics Features - Nov 30, 2015

If the user turns down the Resolution scale, plays in editor, and then ejects from the currently controlled pawn The actors in the scene will be hard to click on because they appear to be offset fro ...

Extra Large Meshes Imported from Maya Flicker in Engine

UE - Simulation - Physics - Feb 16, 2015

Edit MattK: This probably has nothing to do with FBX. The object has a mass of 28 million kg so it would appear that the calculation of mass/physics asset is busted which is causing the flickering ...

Cannot Add Elements to AIPerceptionStimuliSource's Register as Source on an Instance in the Level

UE - AI - Jun 7, 2016

When attempting to add an element to the Register as Source for Senses on an instance of a blueprint in the level, the + button has no effect. Clicking the button does not add an element. This work ...

Sublevel moves away when undoing the level visibility change

Tools - Nov 21, 2016

When you have a sub level with some level transform, changing its visibility then doing undo makes the sub level moved away as if the level transform applied twice. I could repro the issue in 4.13. ...

Default name 'None' for TextureSampleParameter2D blocks overriding in the material instance.

Named 'None' in the material editor, TextureSampleParameter2d is not overridden in the material instance. ...

Collapsed component hierarchy expands when placing component in Widget Hierarchy panel

UE - Editor - UI Systems - May 17, 2017

A collapsed component hierarchy expands when placing a component in Widget Hierarchy panel. This issue seems similar in nature to [Link Removed], but the test case for this issue id different, and f ...

Niagara: Losing focus when editor is open

UE - Anim - Sequencer - Apr 5, 2019

Reported by a user from Reflector. ...

UIScaleCurve float-point value in BaseEngine.ini lacks precision

UE - Editor - UI Systems - Slate - Jun 4, 2020

The screenshots below display 1920x1080pixel widget button. First one with Default DPIScaleCurve shows extra borders on the right and bottom. Next one with more precision shows no extra boundary. [ ...

InstanceOnly UProperties accessible in Blueprint

UE - Gameplay - Blueprint Editor - Nov 30, 2022

Reproduced 3/3 times. Issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. ...

Compiling a Blueprint that references a deleted Macro from a Custom Macro Library will crash the editor

UE - Gameplay - Blueprint - Sep 3, 2015

Compiling a Blueprint that references a deleted Macro from a Custom Macro Library will crash the editor. Crash Report: [Link Removed] This is a regression: did NOT occur in 4.8.3. Reproduced in 4. ...