Yep, I'm responding to myself.
I'm now wondering if it may not be that I can't smell whatever-it-is, but that my skin is eating whatever-it-is. Because the Navegar on my skin is still barely perceptible, but some that I sprayed on my sweater smells just like Navegar did when I smelled it months ago. And I didn't try the others months ago.
So. Slap on excessive quantities of totally unscented lotion and try all the can't-smell-'em Artisans again?