So basically: I should just stop dillying and install pms/tds again
Disappointed! But it's a solution I'll take.
For whatever reason with the default WT avionics, the usual CDI switch for nav source just isn't working, it annunciates GPS mode no matter how much you click, but the HSI flags change. Never senses a radial though.
EDIT: you seem to reference this even with PMS650 so maybe I just need to make sure I'm really really on an intercept course, but I was pretty dang sure in 3 hours of fooling around, we'll just see
Desperately want this plane to work because it's among my favorites, but dang if I'm turned-off on the A350 now.