possible dryness, plants use a lot of water when making scents. the dry spring could be the cause. My skimmia are not as fragrant this year either.

Other folks have been complaining about the lack of scent from various shrubs, so the drought seems to affect lots of normally scented things.

I had two of the shrubs in large pots. I found that they had a large root system and began to fill the pots and displace the compost. If you believe that dryness has become a problem, perhaps lift the shrub and its root system and examin what's happening. You could trim the roots or plant out in the ground.

Thanks for the answers. I think the weather is the culprit because when I buried my nose into another highly scented shrub (can’t remember the name offhand) there was little scent to that. Nor the Daphne Odora.
So, either my sense of smell has final died or it’s the weather.