Unreal Engine Issues
Unreal Engine Issues
"Navmesh needs to be rebuilt" error message while running a Listen Server and Client
UE - Runtime - Character - Mar 1, 2022Navmeshes produce a "Navmesh Needs to be rebuilt" error while running a Listen Server and a Client. ...
Incorrect keying when a Transform Origin is applied
zComponent - Archive - Mar 28, 2023See steps to repro. Our key recomposition algorithms need to take into consideration the Transform Origin manipulations. ...
[Ensure] LoadStreamingLevel and UnloadStreamingLevel are called at the same tick
UE - World Creation - Worldbuilding Tools - May 29, 2023There is no particular error. Developer can ignore it. ...
Blueprints might get corrupted after inheriting multiple times.
UE - Framework - Blueprint - May 17, 2024Blueprints might get into a corrupted state when they are inherited for a big number of times. Starting from a C++ class, if you then create a BlueprintClass from the C++ class, and keep creating ne ...
Remote player aim pitch is not precise when viewed by another player
UE - Gameplay - Mar 19, 2025Blueprint compiler doesn't always initialize struct consts correctly
UE - Framework - Blueprint Compiler - May 1, 2025Blueprints currently don't support unsigned 64 bit ints, but they do support signed 64 bits. If a Blueprint uses a native struct variable that contains a uint64 property, it incorrectly assigns that ...
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 ...
Niagara System is causing Application SpaceWarp to get disabled
UE - Platform - XR - Apr 13, 2026Crashreporter.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. ...