Sorry to reopen an old thread, but just jumping in here with a work-around to the originally stated problem. I've had the same issue flying X-Plane in the Seattle area, because X-Plane knows of two "PAE" VORs: one at Paine Field, and a second one in Laos or something. The second was irrelevant to me so I simply deleted it from the earth_nav.dat file, which is big text file in resources/default data. A hack? Sure, but it neatly solved my problem. No more dupe. If you don't plan on simming down to Brazil, I recommend the same tweak for MRB.