H1B approve 以后又变成Initial Review 55555

我797 approval notice 纸质的都收到了 结果今天 我一查 从decision 又变回了 initial review 描述里面说 your Alien Registration Number was changed relating to your I129, PETITION FOR A NONIMMIGRANT WORKER. 谁能告诉我啥意思啊啊 55555