1. only the "active" dolly camera (the one on your viewfinder) will have look-at functioning, no matter what the waypoints were set to. the look-at offsets break when the dolly animation starts (changes from a vertical offset to horizontal offset?).
  2. Setting a single point for a path breaks dolly system, requiring a restart
EDIT: it wasn't pins that broke the dolly. i've made a short video showing the issues here: https://www.youtube.com/watch?v=PnrrSz24Foc