Unable to assign edited Cad model geometry

New to this software. I have to simulate air flow through a vacuum table. Ive sussed out most of the parameters and how to simulate, however having successfully edited the imported CAD model to assign flow volume, I cant get it to assign to geometry. The edited model does not appear on the list.. any ideas? I wondered if it’s not a feature available on the free version.. which can’t be right?

Tried with native Inventor model, Parasolid and STL with “Optimize for LBM / PWC" disabled.

Help appreciated

Thanks

copy and paste the link to your project here

Thank you for responding so quickly! good to know there’s sound support here. I have figured it out, embarrassingly I was not saving the edits. As soon as I found the save tab (Ironically obscured by the ever present AI assistant chat window) the issue was resolved. I will no doubt be back with more silly questions :slight_smile: