If I try to calculate a route through the Manghen Pass, it is as if a section of road, for a few kilometers before and after the pass, was closed, according to MyRoute-app. That section of road is correctly drawn in the map, but does not appear to be viable.
If I put a crossing point on the section of road that appears closed (for a few km before and after the pass), the program gives an error and doesn't calculate the route.
If instead I put the start and finish outside the closed section of road, without intermediate points, the program calculates the route making a long detour to avoid the section considered closed (https://www.myrouteapp.com/en/social/route/2081016?mode=share).
In fact, the road is regularly viable in both directions.
Initially I thought it was an OpenStreetMap error, but on their site everything seems normal and the path between those two points is correctly calculated through the Manghen Pass (https://www.openstreetmap.org/directions?engine=fossgis_osrm_car&route=46.2106%2C11.4246%3B46.1491%2C11.4520).
So, I guess the problem is in MyRoute-app.