That's what I ruled, if only because there is no other spell that could be interpreted as providing the equivalent of "Invisibility vs. Scent," so if PWT doesn't work that way, parties with access to scent will be able to detect nearly everybody within 30 feet all the time. The party for which I DM gets a lot of use out of Scent, so I didn't feel bad letting the occasional NPC with "Pass Without Trace" be undetectable via Scent. They detect almost everyone who ever tries to sneak up on them.The Metallian
ncG1vNJzZmivp6x7prrWqKmlnF6kv6h706GpnpmUqHyxrdKsZLChpJ28tsCMramam5Viw7R50pycp6xea4FzhJJo