Fluent not opening mesh correctly
 

Im just getting back to CFD and have problem I havent seen before.
I created a simple C-mesh around an airfoil in ICEM cfd. I have separate parts for inlet, outlet, airfoil etc but when I open the mesh in fluent it only recognises some of the boundaries.

I have a suspicion that it might have to do with the way I did the blocking but im not sure. Has any one else had this problem.