I personally feel that if a Mentor has mentor status but there are certain things that they might not know/are not very good with, then that's fine they're only human not perfect machines. We all have things we might not be good at and no one said a Mentor has to be 100% perfect.

I think that what's not okay however, is when a Mentor will outright refuse a newbie any help/advice simply because they feel it's a waste or are throwing the "gitgud m8" mentality at you.