SWIFT transactions are a bit tricky and may get stuck. It happened to me too. KCC claimed that my bank refused to accept USD - I contacted the bank and it said they would accept it but it never came to them.
Later, KCC asked for updated instructions, with a remark it may take weeks till they resend it. I asked about it again today and the answer was still: "We do not yet have a specific date to reattempt payments. We will let you know."
I imagine it could be similar for others that did not receive it.