The system said the records were gone. They really were gone. But the same system routinely reports counts that are wrong by a factor of eight — so how do you know which kind of "gone" you are looking at, before you act on it?
Every bulk job gets re-run — after a crash, a false failure, or a nervous operator. Whether that re-run heals the data or doubles it comes down to one question you answer before it starts.
The message said the record was created. It was not. A different message said the save had failed. That one was already in the database. The interface was wrong in both directions on the same afternoon.
The question was not broken, not hidden, and not misconfigured. It was disabled — by a two-character prefix that every other language I use accepts without complaint.