Did anyone experienced the Questlog bug?

Hello, I am writing this because I didn't saw this in bug fix place I want to fill a ticket but I don't even how to describe it.

My main character a 71 level priest and one of my alts a 58 level warlock suffer from this, their quest logs never updates itself. When I take a quest it never shows up in the log. When I abandon a quest it looks like I cant do it but when i load game or relog, it's updated then it happens again. It only refreshes itself when I relog or have any kind of loading screen. I though some kind of quest is behind this since my other 2 alts in the account never encountered a thing like this I dropped every quest but it still not updating my quests. Its been a month im getting crazy its really ruining my groove.

My old account had the same problem when I'm leveling in Nagrand but it got fixed the very next day and never happened it again yet these 2 characters of mine can't do anything about it.

Does anyone experienced a stuff like that?