https://bugs.winehq.org/show_bug.cgi?id=46385
--- Comment #8 from Alexandre Julliard julliard@winehq.org --- The name of the prefix directory shouldn't make any difference, and there shouldn't be any reason to copy prefixes around.
Anyway, even replicating your instructions, everything works fine here. If things work for you in a plain .wine prefix too, I suspect something went wrong with your prefix manipulations.