Skinned Mesh Renderer Importing as Mesh Renderer

I have an FBX file from maya that should have a mesh skinned to some bones but for some reason when I import it to unity I can see the bone structure but all the meshes are just mesh renderers and not skinned mesh renderers any idea what could be causing this?

Here’s what worked for us

Here’s what worked for us, although this was from Max:

Animation = check
Bake animation = check
Deformations = check
Scale Factor 1.0
centimeters
Y-UP
Binary
FBX200900