I have a "VIP" group and a Player Ranking group "Regular"
I have Priority for VIP set to 4 and "Regular" set to 0 but VIP tag continues to show before "Regular".

Appears it does this for any group. Also tested with "Admin" group set to Priority 0 and VIP Priority 4 appears in chat first.

Merged post

Close......It was a hide if not primary issue. I had a couple set wrong. :S