H1b transfer approval 被 revoke 是什么情况？

大家好！
简要说一下我的情况吧，2015年抽到H1b，然后今年年初跳槽。在5月初的时候H1b transfer被批准之后跳到现在的公司，今天查邮箱发现一封邮件说
“On June 3, 2016, we revoked the approval of your case, Receipt Number WAC151485XXXX, and mailed you a revocation notice. It explains the reasons for our action. Please follow the instructions in the notice and submit any requested materials. If you do not receive your revocation notice by June 17, 2016, please go to uscis.gov to request a copy of the notice. If you move, go to uscis.gov to give us your new mailing address. ”
想问一下大家这种情况有没有人遇到过？是不是补上之前缺的材料就好了？

我double check了一下，这个case是我去年申请H1b的时候的case，这应该是我前雇主看我跳槽之后就把我H1b取消了。这种情况我现在身份应该还是合法的吧？因为我的H1b已经transfer到新公司了。