Update:
Alibre Atom 3D is a bust on the modelling of intersection extrusions, which is what cabriole legs are, also. The good news is they are very good to deal with and refunded my purchase with a smile.
…moving on to OnShape now I guess….
If all else fails I’ll just get the 30 day SU Pro trial and model the stupid leg! 🤣

The early bird gets the worm but its the second mouse that gets the cheese.