Hi Mike...
Think I've found it...
Line 497: $member_address_in = shift || $in{'address'};
Line 525:
$in{'address'} has been added to the $list_name.
Line 564: $member_address_in = shift || $in{'address'};
Line 595:
$in{'address'} has been unsubscribed from the $list_name.
$in{'address'} should be $member_address_in
I just fixed my online copy, and the test shows it works better that way.
Hope this helps...
Best Regards,
Derek