OPT 收到receipt number 但是查case 显示not recognized

晚上收到短信receipt number，然后马上去官网查case，结果显示“My Case Status does not recognize the receipt number entered. Please check your receipt number and try again”。

有人之前也有这种情况吗？这是系统还没case进去还是有什么问题呢？

号段是YSC2190097***，供参考。

再贴一个timeline：
3.8 - Delivered. Signed by J.HARPER
3.15 Morning - Check cashed
3.15 Evening - Received text

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更新一下：在隔壁3月Chica lockbox帖子里看到讨论说是因为USCIS系统问题，所以这几天发的receipt都有类似的Validation Error，不影响case本身进展。


补充内容 (2021-3-18 02:20):
3.17今天已经可以查到case了，显示Case was received。

3.4 Delivered 目前一样，你去看三月的timeline后面有人在讨论，应该是还没更新