How to reproduce the bug:
- Create a new blueprint project
- Disable Paper2D plugin
- Package project for Windows (same bug for both building configuration, development or shipping)
- Run the executable file
If it is packaged for Development, the error is:
Fatal error:
[File:D:\Build++UE4+Release-4.16+Compile\Sync\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp] [Line: 6409]
LoadPackageAsync failed to begin to load a package because the supplied package name was neither a valid long package name nor a filename of a map within a content folder: ‘’