Science is the belief in the ignorance of experts.
I had the retail version show up. Did that have all the same issue the KS version had?
I've got the retail version. It arrived last week. It had the wrong Epic Skill Dice and was missing one black peg (it had an extra blue one). I'm using yellow d6 for now and the replacement dice are due to arrive in two days. You could also use a sharpie to indicate one of the Demon faces is actually a 3-hit.
I don't know if yours will have the same issues. I think the problems with the quest book were rare and random.
I'm having a blast playing this game! I hope you enjoy it too.