Indeed. Except when you play Germany, you really disappoint at World Cups
Actually, ever since those great generations in late 1990's, all ex-Yu teams failed badly at the WC. In 2002, 2006, 2010 and 2014, the ex-YU teams had 8 appearances in WCs (Croatia 3, Serbia-Montenegro 2, Slovenia 2, Bosnia 1), and not even once have they made the knockouts.