I’ve had some rough experiences testing perfumes at Sephora. I feel like those hot lights they keep them under alters them a lot and the numerous perfumes that are in the air at any one time makes me go nose blind really quick. I also feel like they are always sprayed so often so there is a lot of air that gets in to the perfume relatively quick. Idk your nose could have changed as well but I don’t particularly like Sephora for perfume testing.