try adding this list to your pick list and see what happens
Duplicate value problems.
http://www.screencast-o-matic.com/watch/cijQe7wb
I thought the offender was kitay gorod which appears twice so I add strings to the second kitay gorod to make it different but the .js still complains of duplicate values... I think it's because the pick list is limited in size... which is it?
Please include a more descriptive error message in the .js like... kitay gorod appears twice... tell the user where the duplicate value is.
-Sokolnicheskaya Line-
Ulitsa Podbelskogo
Cherkizovskaya
Preobrazhenskaya Ploschad
Sokolniki
Krasnoselskaya
Komsomolskaya-Radialnaya
Krasniye Vorota
Chistiye Prudy
Lubyanka
Okhotnyi Ryad
Biblioteka Imeni Lenina
Kropotkinskaya
Park Kultury-Radialnaya
Frunzenskaya
Sportivnaya
Vorobyovy Gory
Universitet
Prospekt Vernadskogo
Yugo-Zapadnaya
-Zamoskvoretskaya Line-
Rechnoi Vokzal
Vodny Stadion
Voikovskaya
Sokol
Aeroport
Dinamo
Belorusskaya-Radialnaya
Mayakovskaya
Tverskaya
Teatralnaya
Novokuznetskaya
Paveletskaya-Radialnaya
Avtozavodskaya
Kolomenskaya
Kashirskaya
Kantemirovskaya
Tsaritsyno
Orekhovo
Domodedovskaya
Krasnogvardeyskaya
-Arbatsko-Pokrovskaya Line-
Shchelkovskaya
Pervomaiskaya
Izmailovskaya
Partizanskaya
Semenovskaya
Elektrozavodskaya
Baumanskaya
Kurskaya-Radialnaya
Ploshchad Revolutsii
Arbatskaya (Arbatsko-Pokrovskaya Line)
Smolenskaya (Arbatsko-Pokrovskaya)
Kievskaya (Arbatsko-Pokrovskaya)
Park Pobedy
-Filyovskaya Line-
Krylatskoe
Molodyozhnaya
Kuntsevskaya
Pionerskaya
Filyovsky Park
Bagrationovskaya
Fili
Kutuzovskaya
Studencheskaya
Kievskaya (Filyovskaya)
Smolenskaya (Filyovskaya)
Arbatskaya (Filyovskaya Line)
Alexandrovsky Sad
Delovoi Tsentr
-Koltsevaya Line-
Park Kultury-Koltsevaya
Oktyabrskaya-Koltsevaya
Dobryninskaya
Paveletskaya-Koltsevaya
Taganskaya-Koltsevaya
Kurskaya-Koltsevaya
Komsomolskaya-Koltsevaya
Prospekt Mira-Koltsevaya
Novoslobodskaya
Belorusskaya-Koltsevaya
Krasnopresnenskaya
Kievskaya-Koltsevaya
-Kaluzhsko-Rizhskaya Line
Medvedkovo
Babushkinskaya
Sviblovo
Botanichesky Sad
VDNKh
Alexeyevskaya
Rizhskaya
Prospekt Mira-Radialnaya
Sukharevskaya
Turgenevskaya
Kitay-Gorod
Tretyakovskaya
Oktiabrskaya-Radialnaya
Shabolovskaya
Leninskiy Prospekt
Akademicheskaya
Noviye Cheromushki
Kaluzhskaya
Belyayevo
Konkovo
Tyoplyi Stan
Yasenevo
Bittsevsky Park
-Tagansko-Krasnopresnenskaya Line-
Planernaya
Skhodnenskaya
Tushinskaya
Shchukinskaya
Oktyabrskoe Pole
Polezhaevskaya
Begovaya
Ulitsa 1905 Goda
Barrikadnaya
Pushkinskaya
Kuznetskiy Most
Kitay-Gorod 1
Taganskaya-Radialnaya
Proletarskaya
Volgogradskiy Prospekt
Tekstilshchiki
Kuzminki
Ryazanskiy Prospekt
Vykhino
-Kalininskaya Line-
Novogireevo
Perovo
Schosse Entuziastov
Aviamotornaya
Ploshad Ilicha
Marksistskaya
Tretyakovskaya
-Serpukhovsko-Timiryazevskaya Line-
Altufyevo
Bibirevo
Otradnoye
Vladykino
Petrovsko-Razumovskaya
Timiryazevskaya
Dmitrovskaya
Savyolovskaya
Mendeleeskaya
Tsvetnoi Bulvar
Chekhovskaya
Borovitskaya
Polyanka
Serpukhovskaya
Tulskaya
Nagornaya
Nagatinskaya
Nakhimovskiy Prospekt
Sevastopolskaya
Chertanovskaya
Yuzhnaya
Prazhskaya
Ulitsa Akademika Yangela
Annino
Bulvar Dmitriya Donskogo
-Lyublinskaya Line-
Chkalovskaya
Rimskaya
Krestyanskaya Zastava
Dubrovka
Pechatniki
Kozhukhovskaya
Volzhskaya
Lublino
Bratislavskaya
Marino
-Kakhovskaya Line-
Kashirskaya
Varshavskaya
Kakhovskaya
-Butovskaya Light Metro Line-
Ulitsa Starokachalovskaya
Ulitsa Skobelevskaya
Bulvar Admirala Ushakova
Ulitsa Gorchakova
Buninskaya Alleya
Dennis Daniels