Unreal Engine Issues
Unreal Engine Issues
"Navmesh needs to be rebuilt" error message while running a Listen Server and Client
UE - AI - Navigation - Mar 1, 2022Navmeshes produce a "Navmesh Needs to be rebuilt" error while running a Listen Server and a Client. ...
[Device Swap] - Ensure when connecting a controller or USB audio device while audio is playing in PIE
UE - Audio - Mar 11, 2022Ensure when swapping to a newly connected USB audio device. {no format} Ensure condition failed: Cache.Contains(DeviceIdName) [\build++UE5\Sync\Engine\Source\Runtime\Windows\AudioMixerXAudio2\P ...
Crashes when playing Slomo on NiagaraSystem with Solo and DesiredAge.
UE - Niagara - Mar 23, 2023When Slomo 2 is used to speed up the process, TicksToProcess is greater than 1, which means that ManualTick is called several times during one loop. When playback is completed by a ManualTick in t ...
Incorrect keying when a Transform Origin is applied
UE - Anim - Sequencer - Mar 28, 2023See steps to repro. Our key recomposition algorithms need to take into consideration the Transform Origin manipulations. ...
Getting the Outer (GetOuter()) inside AssetUserData::PostEditChangeOwner added to an instanced actor in a level returns the Outer marked with "Trash"
UE - Framework - Nov 20, 2024When you call GetOuter() inside AssetUserData::PostEditChangeOwner, the Outer that is returned, is marked as "Trash". This is because the object is constructed again when an AssetUserData is added. ...
Static meshes viewed in the static mesh editor in orthographic side view are becoming white after a couple of seconds when quality preset is maximum.
UE - Rendering Architecture - Jun 18, 2025Context: Orthographic views are used to have a 2D view of a 3D object providing precise control over object placement and alignment. This can be used for projects like isometric games and architectu ...
Iris - Server fails to send client initialization RPCs after seamless travel if the client finishes travelling first
UE - Networking - Iris - Nov 18, 2025During seamless travel, when a client loads into the destination level it will call APlayerController::ServerNotifyLoadedWorld, including when it finishes the travel before the server. When the serv ...
Outliner eye toggle fails to hide static meshes when Affect Indirect Lighting While Hidden is enabled
UE - Rendering Architecture - Nov 5, 2025When a static mesh has the property Affect Indirect Lighting While Hidden enabled, toggling its visibility via the Outliner eye icon does not hide the mesh in the editor viewport. The actor remains ...
Character blueprint tick function does not behave properly
UE - Gameplay - Jul 2, 2015Character tick event will continue to trigger even if Start with Tick Enable is set to false. Workaround: Setting "Set Actor Tick Enable" to false on Begin Play will prevent the tick event from t ...
Crashreporter.exe does not appear in packaged projects
UE - Foundation - Core - Oct 30, 2015Crash Reporter does not get packaged with development build projects when they have "Include Crash Reporter" set to true in packaging options. ...