Oculus crash on "stereo on" when the proximity sensor is not triggered.

[Link Removed] Release-4.15 stream, latest. I built qagame in debug. Then I run it: trigger prox sensor - vr turns on 'stereo off' - vr off release prox sensor 'stereo on' - crash inside ovr_Submi ...

Content Examples: Example 1.6 broken collision - Cloth Map

UE - Simulation - Physics - Character - Apr 26, 2017

Example 1.6 on Cloth Map seems broken. Both Assets clip when twisting when they're supposed to be examples of Self Collision. Regression: Yes Works in 4.15 ...

AssetManager can load blueprints of the wrong type when redirectors exist

UE - Gameplay - Sep 29, 2017

The logic in the AssetManager to determine if a scanned Blueprint should be added to the primary asset directory is wrong if that blueprint has an active redirect targeting it. The simplest way to r ...

Actors attached to Spring Arm with rotation lag avoid pitches of 90 and -90 degree

UE - Gameplay - Jan 19, 2018

From User Bug Submission: When an actor/component (e. g. a camera) rotates around another object using the rotation lag of USpringArmComponent, it cannot rotate to the top or the bottom. At these ...

Set user focus for player 0 will cause other local players to lose input

UE - Gameplay - Input - Feb 28, 2019

When the player at index 0 sets its user focus it will cause other players to lose input. This does not occur when setting the user focus of players with an index higher than 0. ...

Custom Launch Profiles lose selected projects after first re-open of the editor

Tools - Jan 2, 2020

Selected project resets in a custom project launcher profile only after the first time restarting the editor.  Tested: 4.24.1 CL#10757647 4.25 CL#10873002 ...

Use mouse for touch enables gesture action on button which makes the button to lost focus to that the button fires onreleased event

UE - Editor - UI Systems - Slate - Mar 20, 2019

When Use mouse for touch is enabled, the button fires onreleased event. Here is what I investigated. Use mouse for touch enables gesture action in the button that leads to LongPress gesture fires ...

BUG IN CLIENT OF LIBDISPATCH: crash on KeyPress down in WebBrowser

UE - Platform - Apple - Feb 12, 2020

FCEFWebBrowserWindow::OnKeyDown() InternalCefBrowser->GetHost()->SendKeyEvent(KeyEvent); is processed on the UE4 GameThread, inside the Chromium Embedded Framework (CEF) it appears to call a syst ...

Meshs in a hidden sublevel may generate incorrect navmesh

UE - AI - Navigation - Nov 6, 2020

If the level has hidden sublevels, the regenerated navmesh result appears to have a hidden sublevel mesh placed at the origin. Apparently, the reason is that bNavigationRelevant is no longer consid ...

AttachComponentToComponent node does not change the location of a Spawned particle system at runtime

UE - Framework - Components - Feb 17, 2022

You can use the "Spawn Emitter Attached" function as a work around ...