I've been running Abrosia for a while, too, and I'm not even getting missed messages from the Attic, which is kinda weird. :L
edit to clarify: because I usually have a whole ton of them after a few hours. xD
I love the "how many users in this shop" counter though! really useful for picking a shop to minimise missed messages.
I have had this same problem with the Attic. Shame because it could be quite profitable, but I don't get any messages at all, not even missed ones. Hopefully the update will fix this
I have already noticed that the color-coding adds another level of complexity to choosing my shops. I second-guess myself when picking them when I used to just waltz right in. I'll get over it once the new wears off though