Asset localization does not work properly for Paper2D related assets such as Flipbook

UE - Core - Systems - Mar 18, 2022

This issue is resolved by changing Paper2D's LoadingPhase to PostConfigInit, but this is a workaround. We suggest a better long term fix via AssetRegistry changes (see comments). In the default la ...

Cook failure when World Partition maps have level instances using level blueprints

UE - Engine Scaling - Streaming - Level Instances - Mar 14, 2022

The following cook error results from attempting to package a WP map that has level instances using level BPs: LogCook: Error: PackageSplitter found the Generator package still in memory after it ...

FEditorFileUtils::SaveCurrentLevel returns true even when it fails

UE - Engine Scaling - Streaming - Feb 25, 2022

In FEditorFileUtils::SaveCurrentLevel, we set the default return code as true (success) before checking validity of the current level or seeing if PromptToCheckoutLevels is successful. If we're unab ...

Dependency tracking of external actors broken when using python

UE - Engine Scaling - Streaming - OFPA - Jan 19, 2022

Licensee reports dependency tracking using Python doesn't work with WP since it relies on external actors. ...

SetIsRequestingUnloadAndRemoval causes OnLevelUnloaded callback not to fire

UE - Engine Scaling - Streaming - Dec 16, 2021

When unloading a level via ULevelStreamingDynamic, if you register a callback for OnLevelUnloaded and then unload the level with SetIsRequestingUnloadAndRemoval, the level appears to be removed from ...

RebuildHLOD UAT script doesn't properly handle the -nop4 command line flag

UE - Engine Scaling - Streaming - HLOD - Nov 24, 2021

The script performs P4 commands even if -NoP4 was specified. It should properly handle -NoP4 by checking for  if (CommandUtils.P4Enabled) ...

Unexpected behavior when Actor Parenting in the World Outliner of a WP map

UE - Engine Scaling - Streaming - World Partition - Nov 23, 2021

Licensee reports the following in the UDN: There seems to be some other erratic behavior when using parenting in world outliner (i.e. drag and drop one actor on another one in world outliner).Since ...

JSON Serializer FromJson function returns true when property types don't match

UE - Core - Systems - Nov 16, 2021

If the type of a property in a Json string doesn't match the expected type in the Json serializable class being created, then the value for that property will not be read in. However, FromJson still ...