Northwestrider

On longer rides with navigation my Bolt V1 will stop and enter ride recovery mode. I'll need to stop and wait until it recovers, reselect the route and continue the ride. During the process some of the previous distance is lost, which can cause a problem as on a Randonneuring Brevet using Electronic Proof of Passage a clear uncorrupted file will need to be sent in. What may be causing the problem ? It happened twice on a 400K ride the other day. The Bolts battery had a.good charge, as did my Android phone. The area where the problem occurred should have provided a clear signal as few trees or buildings were nearby.