Possible note on ghosting problems:
Seemed to be caused by fire on "Diggy's Metro" server, when many fire emitters were running, ghosting was broken. On clearing of active fires, ghosting resumed. Ghosting was possible while broken, but was EXTREMELY slow, it paused (I believe) for around 10 minutes before resuming, while others did not was as long to ghost, and were unable to continue ghosting after a certain brick count.