I have 6 identical pets that I'm selling, until today I could just right-click and Post and all 6 would be up for sale, as of today's new version it's only putting up 1 at a time when I post. I prefer the previous behaviour and since this wasn't addressed in the version notes I assume it wasn't an intentional change.

The quantities for most items (LIFO) and gear/pets (not LIFO) have separate settings now.

You will need to change the quantity in your settings.