I have two installations of P3D, on two different computers. On one of them I have been curating my ATC callsigns over years with EVP, and it works like a charm.
I have then copied the entire ATC folder, with the ASOS subfolder, to the second machine. There, many callsigns are not recognized (only flight number is pronounced, not airline callsign). When I open up EVP I can see that many callsigns that exist in my original installation are listed as “missing”.
So how can I make sure the updated ATC callsign lists gets transferred from one PC to another, and EVP to recognize that?