MyDrive changing start point when sending stops to TomTom Rider 550
I recently bought a Tom Tom 550. I created a future route on My Drive that starts about 500 miles from my home and includes 9 intermediate stops. i can sync this route with my Tom Tom 550 without the stops and it works fine. When I click Add Stops in My Drive it sends the stops to the 550 but it changes the start point to my home, 500 miles away. I don't understand why it is doing this. Any ideas?