That used to happen to me some times but since I downloaded v1.07 it has not done it at all.
I am still on my 14 days free. I also stopped, used my phone for something else, then relaunch my route, and it wanted to send me back 100km to where I started. Calimoto (which is a biker app) ask if you want to go back to the start or carry on from where you are, This makes sense.
Also I get no spoken directions in my head set ( Scala freeCOM 1). Again no problem with voice in Calimoto. I have already written today about that problem, and apparently I have had 4 replies, but god knows where they are ??. I might get a reply to this, but I doubt I shall find it (them). till these issues are resolved, I shan't be buying in.