David,
I guess I am not sure. We used to have a problem where the four digit number of the patient would somehow revert back to a three-digit number. So, say the patient was 1059, if it became 999, then it would be in the database but hidden. I think this was fixed, but who knows.
If it's happening a lot, you may want to temporarily forward it to yourself so at least you have it in case it goes away.
