You're right-mine didn't look look like this. My blue line was "as the crow flies" (straight line from point-to-point and it was thicker)
I can't be sure, but, in retrospect, my problem may have been caused by a conflict between S&T and my GPSMap 60CSx receiver. I didn't remember it at the time of my posts, but the 60CSx also had an active route to a different location! (Part of the route was shared by the 2 destinations.) I think my situation was just a glitch, whatever the reason. Hasn't done it since.
BTW, I hate not being able to delete routes!