@Nick-Carthew Zumo XT. Some GPX aren't read. Probably too much points. Zumo XT accept 10.000 max.
There is a way in MyRoute to see how many points will be exported in gpx? So I can reduce the track or divide it in 2.
How to see the amount of gps points in a GPX file generated from myroute?
I have a navi that not support too much points. Some route I made in MyRoute are not readable.
How to see how much points are in a track?