Unreal Engine Issues

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 ...

AssetManager can load blueprints of the wrong type when redirectors exist

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

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

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

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 ...

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

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

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

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

Merge Actors Merge Materials Missing in Content Browser

Some debug modes do not work in PIE

It looks like the output of the debug pass is ignored, and the final output from the last frame before the pass was enabled is displayed instead. If the pass is modified to return a different textu ...