I did a ride with navigation, it got funky halfway through the ride making me go in circles around the same point over and over again, so I moved in the direction the course should have continued, it detected I am on the actual course after about 40 mins, and there is just a straight line for extended period of time between when it started misbehaving and when it detected the rejoin, also seems to have under calculated the distance as well for that time. Is there something I can change? Navigation has been really wonky for the 2 rides i tried with navigation.