Hi Christian,
Using version 2.21.1. By the way this route was originally a Garmin export. See gpx file attached
sussex route.gpx (Size: 118.79 KB / Downloads: 660)
I never had this issue with a Garmin file before. It could be just something wrong with this file but i get the same problem even after copying the positions to a new RouteConverter file.
Thanks for the Java advice - I will try java 8 upd 151 and hope it will solve my problem as well.
Using version 2.21.1. By the way this route was originally a Garmin export. See gpx file attached

I never had this issue with a Garmin file before. It could be just something wrong with this file but i get the same problem even after copying the positions to a new RouteConverter file.
Thanks for the Java advice - I will try java 8 upd 151 and hope it will solve my problem as well.