I had a similar problem recently. I switched to a titanium heat break since I apparently have a habit of tightening the aluminum ones a bit too hard, and it was fine for a while but I started getting clogs basically every print at about the 10 minute mark that seemed like heat creep. I couldn’t figure out what the deal was since titanium should be even better about heat creep.

It turned out that the machining for the heat breaks might have been too rough I think? Or at least not “perfect” in some way. I had a ton of problems until I “seasoned” them with mineral oil. Basically throw a couple drops in the heat break with it at about 250. Obviously be very careful since it’s flammable. You could probably accomplish something similar with an old school filament oiler.