I was in the Suggested Edits Review Queue, completed one review and clicked 'Next'. It took a bit of time to get to the next one and this is what it was:
This is obviously supposed to be an audit (I know because I had already completed the amount of reviews it said on the Review page, as I also talked about here (last section of the question)).
Is this a bug? Or did something weird happen at that moment in time that messed it up for me?
This was the item: https://superuser.com/review/suggested-edits/259796