I think I have found an issue with a route calculated by Kurviger: when trying to get from Ischgl to Samnaun, I’m being routed over Zeblasjoch:
https://kurviger.de/?point=ischgl&point=samnaun&vehicle=motorcycle
Various sources on the Internet describe this as a mountain bike or hiking trail. Pictures of the trail suggest that it really isn’t more than that.
Thanks,
Andreas