I just read about the oath ceremony on Reddit and came across such a post - long story short, the op received an email one day before his scheduled in person oath ceremony, the email said his ceremony was cancelled and the sender was IRCC. He thought it was a scam and still went anyways, he wasn’t allowed in by the staff and was able to speak with the judge. The judge told him that while he was reviewing all the applicants’ file yesterday, he sent the OP’s file back for further review. OP eventually got another ceremony in a month. There were also other posts said the same thing happened and there was even a girl said after they cancelled hers, she never heard back and IRCC even wouldn’t renew her PR card so she left Canada three years after IRCC cancelled her ceremony…
I tend to worry all the time but … this is just so surprising and upset …