This video is nice but would be yet more attractive with a song, so a little suggestion, why not add a TS1/TSO music from the Build mod for example?
They were fixed by considering "allow intersection" trees for avatars as well and objects. I've almost entirely fixed them now - there was a relationship bug making the game think that the first person it could find was the cashier (tests to see if a kiosk-avatar relationship exists, was previously always returning true) which was causing them to remain entirely still. Still need to make routing consider these "allow intersection" trees. They're currently working, but only if they can walk to a position other than the one they start on. (routing counts it as an obstacle)