H1b RFE LCA

昨天收到律师邮件说收到了rfe， 只说了"USCIShas requested additional evidence to demonstrate that the H-1B cap petition issupported by a Labor Condition Application." 后面又说了"Acertified LCA was included with the petition"。不懂如果已经交了LCA为啥还会有RFE。有人遇到类似情况吗。。。