Yes, it was an error that's been fixed for the next edition. There were not actually double entries, but the error had to do with us using a table as-is from the Gaming Table records (with multiple entries for many casinos) and not adjusting it in time for our use, as we used a different piece of software from the previous editions with different table join properties. Interesting, huh?
Bottom line is, we know about it and it's all fixed now.