Output Log: LogClass: Warning: Property ArrayProperty UPresetSettingsProperties::ActivePresetCollectionsPaths defines MetaData key “MetaClass” which contains short type name “InteractiveToolsPresetCollectionAsset”. Suggested pathname: “/Script/PresetAsset.InteractiveToolsPresetCollectionAsset”. Module:ModelingToolsEditorMode File:Public/ModelingToolsEditorModeToolkit.h
LogAutomationTest: Warning: LogClass: Property ArrayProperty UPresetSettingsProperties::ActivePresetCollectionsPaths defines MetaData key “MetaClass” which contains short type name “InteractiveToolsPresetCollectionAsset”. Suggested pathname: “/Script/PresetAsset.InteractiveToolsPresetCollectionAsset”. Module:ModelingToolsEditorMode File:Public/ModelingToolsEditorModeToolkit.h
LogPackageName: Warning: DoesPackageExist called on PackageName that will always return false. Reason: Input ‘’ was empty.
LogPackageName: Warning: DoesPackageExist called on PackageName that will always return false. Reason: Input ‘’ was empty.
The first warning is due to experimental plugins being enabled, ie the modeling tools editor plugin. Not sure why this is not left out of experimental plugins or not enable the plugin at all. The rest of the warnings, nobody has been able to figure out, so one not so big of a problem and the other is a problem. Epic please stop adding features until you fix what you have.
Update for anyone having this issue: To resolve this warning, just right click the asterisk in the outliner bar and uncheck “Unsaved.” That will make the “Unsaved” category go away and fix the issue. I hate having unknown errors in my output log, so I hope someone finds this helpful. Credit to @Popomart
