Weird bug - length is zero between several points in the arctic

[bjornasm]

I have a set of points in the arctic where sr.searoute says the distance is 0, even though there is considerable between the points. It is almost like there is some kind of silent failure in the program, meaning we end up with 0 for all traits instead of the error message. Interestingly enough the linestring showing the route goes to the same single point for all the points that are failing.

The error persist if I change up origin point and destination.

The origin point: [16.97, 80.856] The destination points:

[30.395, 77.457]
[16.976, 80.856]
[26.756, 72.046]
[28.368, 73.123]
[19.421, 81.142]
[20.996, 79.240]