Usmap version parsing bad

[Hiro420]

So I tried loading latest Usmap (from https://fortnitecentral.genxgames.gg/api/v1/mappings), same Usmap FModel uses, like this:

var provider = new DefaultFileProvider(_gameDirectory, SearchOption.TopDirectoryOnly, true, new VersionContainer(EGame.GAME_UE5_4));
provider.MappingsContainer = new FileUsmapTypeMappingsProvider(_mapping);

_mapping being the path to mappings file.
CUE4 raises an exception: An error occurred: Usmap has invalid version (3), while FModel doesn't when using the EXACT SAME usmaps.
wtf is going on?

[GMatrixGames]

Use the submodule, not the nuget package.