There is a bug that appeared after the latest update.
When you use celestial shield(from augment), your previous active skill should be removed and replaced by the cele. That's how it was working all this time.
After the update, when you use your active celestial shield , your previous active remains and u are ended up overbuffing yourself.
In summary, its a clearly bug to have two active skills in the same time. And that's what's happening right now.