I had this same issue. I didn't have too much time to resolve this but I've found temporary solution.
Problem was in Net::MirrorDir (0.05). I changed line 120 from

$self->{_readremotedir}->($self, "$p/$_") for(@files);
[download]

to

$self->{_readremotedir}->($self, "$_") for(@files);
[download]

and it worked

Regards,
emde