Upon arrival, found water spots in the master bedroom ceiling. In the attic, found water intrusion signs in the insulation above the water spots in the master bedroom ceiling. Found a roof vent directly above the water spots in the insulation. Inspected ductwork going back to the master bedroom and the duct is sealed and not leaking. Inspected the air handler and the air handler is showing no signs of leaking as well. The most likely cause of the leak is due to roof leakage.