Using expand points on an exisitng route, creates waypoints just called 'routepunt' (or similar) in the itinerary this leaves unamed points on a tom tom itinerary file when transferred to my device, and seems to cause errors.
The only work around is to visit each expanded point, move it to establish a road name, then re-locate it back on the route desired.
Okay, we take a look at ot.
The reason for unnamed routepoints is because you get the expand routepoints very quick.
And the important routepoints, with name, you add by yourself.
We can not reproduce any errors in this proces.