[Dakota]

Rule 8-5-G-4 and RS on Overthrows state clearly that if the umpire errs in making a base award, the error cannot be corrected after a pitch. While the statement is made pertaining to overthrows, lacking any other guidance, I would consider this a general principle on base award errors by the umpire.

No correction should have been made in the OP situation.

Also, if the umpire used rule 10, presumably he was using 10-3-C, which only applies to calls reversed or late calls, not to any general error by the umpire. And, even with that, it is not possible to make the rectification after a pitch.

The umpires, IMO, compounded their original error in not making the base award by misapplying 10-3-C and by "correcting" an error than could not be corrected.