fitness of IGES format for ICEM meshing
 

I have this geometry I exported from solid works sketch as an iges file. When I mesh this geometry and process it in fluent some boundary conditions are missing. I did some trouble shooting and found when I'm assigning boundary conditions in output tab, most of the curves show up as mixed/unknown, which I think should show up as edges. What might I be doing wrong?

I'm making quad mesh and my immediate aim is for all BC to show up in fluent

Parts which show up only as edges in the output tab really only contain 2d entities. Even if only one point or point element is in the same part it is considered mixed.
This is likely not an issue for fluent though.

However, you need to apply a boundary conditions on those mixed parts which do contain your boundaries.