https://bugs.winehq.org/show_bug.cgi?id=46385
--- Comment #9 from Van winebugrpt18356@fastmail.jp --- (In reply to Alexandre Julliard from comment #8)
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.
You asked for step-by-step reproduction steps.
I waited to reply because I checked and there was an upgrade in the Debian Unstable repo that hadn't trickled down to the mirrors yet. I just upgraded a few minutes ago and the problem still exists.
You say you are not able to replicate the issue on your end. Are you testing in an up-to-date Debian Unstable?