I just received the extra wizard quest buff for the second time today. I assume it's a glitch, because when I go to wizard quests, I'm not able to do another quest.

Because the buff comes from a random event, it's possible for you to get the event more than once a day. However, you are only allowed the one extra quest per day, so if you do get the event again it doesn't matter.

Okay, thank you!

I believe if you get the random event twice before the first buff runs out, you can have two bonus quests. I'm pretty sure I've done 17 before.

Hmm maybe. I think sometimes the thing just messes up, because I've had 11/10 on quests other than the Wizard before but it was because something glitched while I was turning in items.

oh I don't mean from a glitch, I mean from bonus quests when things are going fine. I'm pretty sure I've had two active at the same time and I've done 17/15. getting that buff twice in a row isn't common though, it may have been changed since then or I could just be remembering it wrong.

Well I guess if you're lucky enough to get two events that close together, you deserve the extra extra one. :P