I’ve tried 8 mask several times on several toons and I always get to the last zone I need (which is usually a lesser) and the first mob that does sanity drain, not a major sanity drain ability but like a minor 10 / 30 sanity even with 400% increase just instantly does 575 sanity and then does it again after I revive.
This has completely bricked my account, I’ve watched several videos of people doing 8 mask runs and even watched a friend get the mad title and this doesn’t happen to them.