If a mistake is made on a chip (or a stamp, coin, baseball card, etc), just because the error is not corrected in later prints or editions doesn't mean the object in question is NOT an error; it's just an UNCORRECTED error. If I am wrong in this assumption, please advise (show me your source of information). I've collected stamps for 30 years and errors on stamps that are not corrected are still duly noted as (uncorrected) errors in stamp value guides. Bally's only recently came out with these chips, so I don't know if they plan to correct the error, but it's STILL an error!