Having problems with my Garmin Edge 800. After using just over a year with no problems, it started giving turn alerts for every curve in the road. So while following a gpx route for instance, where the next turn is 2.5 miles, it alerts me for every curve in the road, not just at the 2.5 mile mark. Distance to Next is also displaying next turn on say 450 ft, which is the next curve in the road. Tried every other suggestion I have found online and reset my device multiple times. Software is up-to-date and the same gpx files works on other 800s. Any other suggestions?

Thanks.