Although openstreetmap.org counts the navigation route over the sea in a second, my Huawei Honor 10 counts the same route over the night! Once again calculation result was Ok the next morning!
The final result!
=================
For some reason OsmAnd+ rote calculation over the sea rake's veeeery long time and it sends couple of notes about the map.
Anyway and after all the final result is OK.
Depending of the destination in Estonia calculation time was 3'30 to 3'48. So waiting for more then two minutes made me nervous and specially after several error messages.
So - no problen - low performance only.