I am quite new to working with point clouds/ mesh. One problem that I keep running into is that at some point in the design process I can no longer "show" the mesh. Normally you can "show/hide" the mesh from the right click menu. But at some point the "show/hide" is no longer available.
The only thing that I have done that may have caused this is to do a save as to a new part name - maybe the mesh file got messed up?