Weird Flight - Plane not on filed route

Was supposed to go to Wenatchee from Boeing Field. Directly east. As of this writing its heading north after doing several circuits. Dunno whats going on

flightaware.com/live/flight/AMF … /KBFI/KEAT

Looks like he never went to EAT, but went straight to Bellingham. Dunno how the flight plan still said Wenatchee.