Damage drop during Ryoka attack (since the merger)

Kallanar

Has anyone noticed a drop in total damage you are doing per attack?

During ryoka attack i have been experiencing a drop in total damage done per attack; usually around the 12 - 13 min mark. I will be doing around 12mil until that point and then after that point doing only 5 mil, then at around 3 min left drops again to only 3 mil. This has been happening ever since the server merge.

Has anyone else had this prob or is it just something thats supposed to happen?