It's working, otherwise you wouldn't be able to open catpart files. This is what the translator does, show the resulting bodies, just like when using iges, step or parasolid.
1. open .catpart
2. run import diagnostics (no problems)
3. run featureworks
4. choose automatic and go to the second page in feature works
5. click on unrecognized body (hightlighted)
6. click on part