No arm64 folder exists in plugins leading to an Error when packaging plugins

UE - Foundation - Core - Nov 16, 2022

Regression: Checked in UE5/Release-5.0, the folder is missing from the plugin as well. This issue appears to be a problem with packaging the plugin itself, rather than packaging a full project. Pac ...

Actors disappearing after saving a large number of modifications to world partition maps

UE - Foundation - Core - Nov 4, 2022

From Licensee: "We've encountered a world partition bug where newly created actors go missing in the viewport and Outliner after saving modifications to a large number of actors. This bug is partic ...

SignedArchiveReader may request wrong number of chunk blocks

UE - Foundation - Core - Oct 25, 2022

This problem is caused by an incorrect calculation of the number of chunks in the read request. Here is the workaround applied by the licensee : int64 FSignedArchiveReader::PrecacheChunks(TArray<F ...

NormalizePackageNames() should interpret 'exclude developer folders' to also exclude packages in ExternalActors and ExternalObjects

UE - Foundation - Core - Oct 14, 2022

In NormalizePackageNames() (PackageUtilities.cpp), there is a PackageFilter parameter, which can be set to exclude developer packages (NORMALIZE_ExcludeDeveloperPackages). The code only checks the b ...

FPackageName::SearchForPackageOnDisk fails to find maps when using IOStore

UE - Foundation - Core - Sep 26, 2022

This bug was discovered by a user who tried changing level through the 'servertravel' console command (HandleServerTravelCommand).  Debugging shows that FindFilesAtPathInIndex won't return anything ...

Editor-only blueprints like WidgetBlueprint are not added to cooked asset registry class hierarchy

UE - Foundation - Core - Aug 10, 2022

Both the Asset Registry and Asset Manager look for all subclasses of UBlueprintCore and use that to search for blueprint classes and construct an inheritance hierarchy. This always works in editor b ...

Can not affect "r.SetRes" command in editor new window

UE - Foundation - Core - Jul 11, 2022

When playing in "New Editor Window" mode, entering the r.setres command does not change the screen size. This worked in UE4.27, but no longer works in UE5.0. ...

If DeferRunningConstructionScripts is executed in LoadMap, BeginPlay will be executed before ConstructionScripts.

UE - Foundation - Core - Jun 22, 2022

DeferRunningConstructionScripts has been added as a workaround for a issue by asynchronous mesh compilation, but it doesn't consider BeginPlay. Therefore, if DeferRunningConstructionScripts is execu ...

TArrayView64 RangeCheck prints the incorrect error messages for values over 32-bit length

UE - Foundation - Core - Apr 29, 2022

TArrayView64 RangeCheck prints the incorrect error messages for values over 32 bit. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it is not a regre ...

TArray64 RangeCheck prints the incorrect error messages for values over 32-bit length

UE - Foundation - Core - Apr 27, 2022

TArray64 RangeCheck prints the incorrect error messages for values over 32 bit. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it is not a regressi ...