I’ll bet something was different:
Did you:
-close a credit card?
-open a credit card?
-do either of the above and change the ratio of credit card balances vs. total credit limits?
-pay off or add a new loan account?
-7 years ago, did you have a credit card with a large limit that has been closed for a long time? If so, it reached the 7-year mark and dropped off which could negatively impact your score.
7 years since my last credit card closed. It was always paid in full by the due date and I think I had about a 15K limit on it, but it was just easier for me to handle stuff in other ways.