Campaign maximum coop difficulty bug

I already played act 2 coop on Insane difficulty, in chapter select it says It was played on Insanit, but in stats, Act 1 and Act 2, both say i haven´t played them on coop. No matter how many times i play these chapters, in stats it keeps saying i haven´t on coop but under chapter select it does.

TC is attempting to roll progression back out to impacted players.

Closing as we have many threads on this issue.