Forth never been so quiet!

My AIS is not broken, its just the Forth has went eerily quiet, as if the pilots have went on strike or somethin! Hours since a major unit moved and no tugs or pilots scootin aboot as they usually do...all inbound ships are at anchor in the Firth or at the Firth entrance...in all the months I've been watching the Forth, never seen such a lull in activity!