Bug of Enhance rate

Bug Name:

Bug of Enhance rate​

Bug Description:

I tryed enhance with +6 giath's halmet 100 durability and 8 stacks.
However, all of the enhance failed and +6 giath's halmat durability became 20.
This is terrible than normal server.
If u want to check It is true or not, I can show u my giath' halmat pics. This is true.
also my guild member feel it.

I know enhance is so very very easy in zbd server.
but It is not now.
I think enhance's rate changes in real time.
it isnt bugs maybe.

If It is no problems. PLZ don't touch enhance rate!!! and rollback enhance rate!!
I lost 400M slivers cuz enhance.
This is my luck problem.

I have been from beta. so I know. this server's something changes in realtimes​

How to reproduce/proof:

Try enchance boss equips like giath's halmat and tree armor.​