zumo 396 glitches

[cachs005]

Just returned from a long trip and noticed some glitches on my zumo 396. First of all on the 5th day i encountered some rain and the gps stopped working with the mount connectors. I couldn't test the connector since i didn't have the meter with me so i strapped it to the mount and connected the gps via a usb cable. i managed all holiday like that.

Now for the glitches. Glitch 1: i noticed that when passing under tunnels, the vehicle icon continues to move in a straight line not follow the curvature of the tunnel, most of the time ending in empty space or other streets and having to recalculate. i never did it before. I first encountered this problem in Austria/Germany/Italy

Glitch 2: sometimes we i was doing mountain passes or curvy roads, the vehicle map would veer off the street and go into empty space and after some point in time it rejoins the road.

Glitch 3: I use trip planner for my routes and use a waypoint for the start and a waypoint for the finish, with shaping point in between. If i need to go somewhere along the road (eg a petrol station) and search for and Add as next stop, the gps would calculate and sometimes add a ridiculous amount of distance left. Example if distance remaining is 100km and i add a petrol station as my next stop, the gps would recalculate the distance remaining sometime to 300 or so which would be absurd. I would zoom out of the map and mark a straight line in the middle of nowhere.

I have been using zumo 396 for some years and i don't want to get rid of it since i find it very easy to use. If anyone has any idea of what might cause the glitches mentioned it would be of great help to rectify them