Rapidly clicking NPC

So using questing bot Kick's 89-90 but its happened a couple of times along the way also.
Finish all requirements and it just rapidly targets and un-targets the npc (about 10 times a second)

Should be right at the very end of the log as I stopped it as soon as it happened this time.

Happens when trying to accept and turn in a quest

 

Happens with a lot of quests, not just this one.

 

This actually happens to me too, but it usually stops after like 15 secs and only happens rarely.

 

Happens every 10 or so quests for me. I have figured out this was the cause of a previous thread I started about the bot logging me out every so often.

 

the only other thing i can recommend is removing your wow addons to see if it improves.