This is very very strange.
I checked my progress, the blur bar is filled across: "Grant Access to Tier 3"
I also talked to the guy at the gate, and he said "Congratulations on getting Tier 3".
However when I tried to go past the red barrier, it wouldn't let me?
Lol?
The only thing I noticed that wasn't quite right was, out of the four gates, I had only two white stars on one of them.
The others I only had one, because I've only done tier 2 on one of them. Do I have to do tier 2 on all the gates first?
Talk to the guy by the red barrier and finishes the conversation. He's the one that grants you access.
~Gwen