Some recent research has shown that everybody has blind spots, ie is anosmic to some molecules most other people are able to smell. So perhaps you've hit your blind spots.
That said, Iso-E (molecule 01) is not very strong, it's a base note that doesn't have a sharp profile, it's a skin scent, more a sensation (somewhat salty, somewhat sparkly, light woody) than a precise smell. It may also be that the quantity in a vial is too small, or the skin is too cold. If you happen to be in a store, try spraying and see if you can smell that. When I smelled 02, I definitely smelled it, but I was fatigued, so don't remember well. I haven't smelled 03 yet.