Risks of invisalign

Were you guys given warnings and stuff? I’ve not been informed about any sort of risk whatsoever. Is my dentist in the wrong here? And what are the risks, wear can I read about that? Or maybe I’m better off not knowing lol. But I read someone said that some things can cause irreversible damage, for example not wearing the trays long enough or take them out for more than an hour, those sort of things seem crucial to be aware of if that’s the case?

Not complaining, just wondering.