What you were expecting to happen, and what actually happened?
Usually the Monster Difficulty did not apply to PvP but to my surprise my couple of PvP games have 200% (Warlord IV) applied to it
What are the steps to make it happen again?
Play PVP on Warlord IV difficulty
Do you have any screenshots or video you want to share with us so we can see the problem? Attach them to your post!
None but reproducible