Same here Dragon, but that was an AvA event not a scenario team managed one.
Your response appeared to suggest that the AvA staff messed up somehow in your comparison to the CM staff. The AvA staff didn't mess up any more then Nef did in his Combat Challenge.
Nefarious had the same problem in the SEA for his event. It's Beta! These things can happen in any arena after any patch, regardless of the staff running the arena. Staff and CMs have no control over these issues. We take a risk of wonky arenas and players that won't have updated their settings when running in the Beta, but it's well worth it.
If you'll kindly notice, the AH3 bug forum has far more threads in the technical help category then postings of actual bugs. imho AH3 can't be far away if no one is documenting real bugs.
I'm sorry you two had any issues. It was a fun time.