fs meteo

i have a problem with fs meteo.
I make a internetconnection.
I start fs meteo and use the offline mode - "get world and stay offline". Fs meteo starts to download the metars without any problems. When i type in "requested station" a metar, let's say LEMD, he does not reconize that airport (LEMD). He gives a totally other iata code that LEMD.
What wrong with that?
I make a internetconnection.
I start fs meteo and use the offline mode - "get world and stay offline". Fs meteo starts to download the metars without any problems. When i type in "requested station" a metar, let's say LEMD, he does not reconize that airport (LEMD). He gives a totally other iata code that LEMD.
What wrong with that?