Weird market bug?

Hello While playing today the market window began closing itself, which instantly scared me, after opening the market window and it closing for two times i noticed it happened when i was browsing through helmets, I then tried to browse other sections to see if it would close and it didn't, as a matter of fact, it stopped closing on the helmets section after I looked through other sections. I am posting this to ask you guys if you have dealt with similar behavior before, because it scared me (you probably know the reason why it would scare a tibian)

Possibly related (?): on the same session I encountered a bug/unintended behavior with the new npc chat window. In yalahar when you talk to the guards to pass to the next quarter the npc chat window automatically closes when you do arrive in the next quarter, this didn't happen when going from cemetery to alchemist, needing to manually close the window.