@travellexwill-cyou
Thanks Will. I will try this but I am not sure this is the total problem.
When I was first building the route I got to 53 then searched for Timmelsjoch in MRA, choosing this:
Timmelsjoch High Alpine Road
46.911210, 11.087460
and placed a waypoint. Straight away the map would not route between 53 and this point. I had to add lots and lots of waypoints between 53 and this waypoint to make MRA make a direct route.
So, I think maybe the whole area has a problem. Maybe seasonal closing is not being ignored here?
This is not a massive problem for my trip as when I break the map in to separate days, it should work. And also I am intelligent enough not to get up in the morning and let the map take me to Innsbruck but I think the problem needs investigating and fixing in MRA or HERE, whichever is at fault.
Thanks for your help