Orchids don't always release their fragrance (if they have any) all the time... it could be fragrant but due to conditions when you saw it wasn't putting out then.
I see the hang tag says 'Gubler's', so assume they were the supplier. They are a known nursery, perhaps you can contact them and see what they say.
Gubler Orchids
My area' supplier is Better-Gro/Sunbulb, and they do help when possible. I know a few people who have gotten IDs on Better-Gro plants from the nurseryman. I imagine Gubler's would be the same.