https://twitter.com/PlayHearthstone/status/1376957450453020673
(NEW) A bug where queueing for ranked Standard or Wild can fail if you or the
opponent you’re matching with has Core Set cards in their deck
排標準或開放天梯時 如果你或你的對手有放核心系列的卡牌就會匹配失敗
官方修復中
更新: 已修復
https://twitter.com/PlayHearthstone/status/1376981691135188992
經典卡包還是會開到之前替補的16張卡 所以暫時不給開
更新: 已修復