Attempting to rotate a physics actor in blueprints through a custom component does not correctly respond to rotation input

UE - Gameplay - Mar 28, 2016

SetRotation in a custom component based on another actor's linear velocity incorrectly updates the velocity of the parent blueprint containing the custom component. This causes sporadic, jittery mov ...

Widgets remaining in memory after they are removed from viewport

UE - Editor - UI Systems - Oct 23, 2015

Widgets appear to be remaining in memory even after they have been removed from viewport. A user can use Get all widgets of class to search for a widget (with Top level only set to false) and it wil ...

On clicked events do not appear to be working when packaging for HTML5

UE - Platform - Mobile - Apr 14, 2017

On clicked events do not appear to be working when packaging for HTML5 ...

Blueprint Functional Tests Failing When Run Dedicated Server is Enabled

UE - Automation Test - Feb 28, 2017

When Run Dedicated Server is enabled, it appears that functional tests are not able to succeed. The following error is appearing in the Automation Test Results: No functional testing script on map ...

Gear VR Touchpad input broken

UE - Platform - XR - Jul 27, 2018

Gear VR Touchpad input no longer functioning in 4.20 Noticed this appearing in 4.20 logs from device (did not appear in 4.19 logs): LogOcInput: Get touchpad main with data 0.000000 0.000000 Also t ...

CPU Particles spawned through Blueprints do not keep Collision

UE - Graphics Features - Nov 5, 2014

Particle Systems spawned via a blueprint are not generating collision. The same system will generate collision if placed directly in level. Also reported: https://answers.unrealengine.com/questio ...

Unable to set a BP component field with WithIdenticalViaEquality

UE - Gameplay - Components - Sep 29, 2023

There's some quirky behavior occurring with the component's CDO when we change a value that isn't compared by the native code's equality operator. It only seems to commit when we first change anothe ...

Viewport focus is not updated when the mouse leaves the current window.

Tools - Oct 14, 2015

The viewport focus does not return false when the mouse leaves the screen and clicks somewhere else. ...

Sequencer fails to package during Build command for ASTC

UE - Platform - Mobile - Jan 15, 2017

When attempting to test for ESDSR on Android, the Sequencer project fails to package towards the end of the Build Command. Runtime/OpenGLDrv/Public\OpenGLESDeferred.h(267,5) : warning: 'OPENGL_ES2 ...