Germany, Austria and Switzerland

Turn restriction (only_left_turn) 17859763 check: 'via' way(s) are used in only_left_turn restriction

Turn restriction (no_left_turn) 14197840 lacks 'to' way

Turn restriction (only_straight_on) 3531153 lacks 'via' node (guessing it should be at https://www.openstreetmap.org/?mlat=51.821956&mlon=8.853366&zoom=17, why don't you add it to the OSM data?)

Turn restriction (no_right_turn) 4570585 lacks 'to' way

Turn restriction (no_left_turn) 16078095 lacks 'from' way

Turn restriction (only_straight_on) 5824493 lacks 'to' way

Turn restriction (no_left_turn) 16078119 lacks 'from' way

Turn restriction (no_u_turn) 7657207 lacks 'from' way