Yes, it is only partially fixed. With live weather and you have a gate or ramp as the arrival in the Logbook and click Fly Again, the World Map will sometimes show the arrival runway that has a tailwind.
I have found that if I Set As Arrival on the proper runway with a headwind and then Set As Arrival back to the gate or ramp, most of the time the World Map will then show that runway with the headwind for the flight, and for ATC to use when you contact the tower during that flight.