Frank,
I think that there are a few questions here. Firstly, the route shown by RadarBox depends upon the Flight ID. The Flight ID is set by the aircrew, so there are a number of possibilities here:
- First, some of the routes you are showing are not in my database, so how did they get into your database? Did you enter them manually, or did they autopopulate?
- If the crew have set the wrong Flight ID, or have not changed it for the next leg of the route, then it will give a wrong route
- Or of course, the location of the aircraft on your RB map might be wrong, but I think that this is the least likely of the possibilities.