Apple Pay has launched in Japan, but the mobile payment method’s integration with JR East’s Suica transit card has hit a major snag, as acknowledged by Apple’s website. Apple said that problems cropped up around 9:20 a.m. local time, when users started having difficulty adding Suica cards to Apple Pay or were unable to add money to their cards. Users also had problems accessing JR East’s “Mobile Suica” system to…