When clicking on the Flight Master at Grom'gol even without going any where else, there is a couple of Flight Paths there, at least one of those does not work and shows no amount. If you get the Flight Path in the Great Forge in Iron Forge, then walk to Thalsmar (spelling) and click on the Flight Master there it tells you that you do not have any knowing flight paths connected to this one (it should have the Flight Path to Iron Forge, at least, maybe Storm Wind if I remember right.)
When clicking on the Flight Master at Grom'gol even without going any where else, there is a couple of Flight Paths there, at least one of those does not work and shows no amount. If you get the Flight Path in the Great Forge in Iron Forge, then walk to Thalsmar (spelling) and click on the Flight Master there it tells you that you do not have any knowing flight paths connected to this one (it should have the Flight Path to Iron Forge, at least, maybe Storm Wind if I remember right.)