When I add wind data during flight, I typically get a hang/CTD upon clicking the right line select button after typing in the values.  Does anybody else get this?

Typically (when I bother to) enter the wind data, I save it until during the flight to save some tedium during preflight.  Or, as I did in this case, I'll enter the first couple waypoints and then finish in the air.  What I haven't had the chance to try yet is attempt to enter wind info on a "blank slate" during flight.  It just seems odd as I know I've done this before and haven't gotten these crashes.

Of course, I also have reason to believe this data is useless as it doesn't seem to change any of the PROG numbers.  Is this correct and should I even bother with it at all?

I haven't seen this yet with the DES Forecast page.