If a bus stops providing GPS updates, TripView will hold the last known prediction for 10 minutes, but will show it as Last reported (e.g. Last reported on time, or Last reported 5 mins late) to indicate that it's based on an old GPS update and is just a best guess.
If the bus doesn't start providing GPS updates again after 10 minutes, TripView will drop all real-time data, and revert to showing Real-time data unavailable.
It's common for buses to stop reporting GPS updates in between trips, so if your bus has terminated after finishing its previous trip, it may show a Last reported status until it starts the next trip.
Contact Support