I was flying from Honolulu (PHNL) to Majuro (PKMJ) and when I reached one of my waypoints that wasn’t the end of my flight plan I got a notification stating “End of route reached. HDG mode engaged.”
The only reason I noticed is because I saw on my veering off route on a tracking app. In this particular case it seems MAZZA waa the waypoint it considered the end of the route.