When running an uncooked game using the -game switch, I now get "Detaching from existing linker" error on startup

When running an uncooked game using the -game switch, I now get “Detaching from existing linker” error on startup. Is the “uncooked” game feature now retired?

Figured it out. I had an error in one of the blueprints buried deep inside the assets which caused the asset build to fail. In case this ever happens to anyone, try at least cooking the game once in order to see if all of your blueprint dependencies work.