Store bought modern bacon is loaded with sugars and that is what is causing the issues. I’ve found that the older the seasoning the lesser the impact. Still, just scrub off the stuck on bits with a chain mail and some hot water with a mild dish detergent then do a quick post-season on the stove and it’s like it never happened.
But here’s a pizza party for the crew! Be sure to only have one slice so there’s enough to go around.