As of last Friday, the ticket gates at Manchester Piccadilly have been rejecting my GM traincard* season ticket (issued from Glossop) with error code 116. I have seen several other people having the same problem.
http://www.railforums.co.uk/showthread.php?t=48909 suggests the error code should be interpreted as "station not listed as allowed for entry and exit with this ticket"
Why might Piccadilly not be a valid station for use with a GM traincard?
*http://www.tfgm.com/journey_planning/Tickets/Pages/tickets_rail.aspx
http://www.railforums.co.uk/showthread.php?t=48909 suggests the error code should be interpreted as "station not listed as allowed for entry and exit with this ticket"
Why might Piccadilly not be a valid station for use with a GM traincard?
*http://www.tfgm.com/journey_planning/Tickets/Pages/tickets_rail.aspx