Please tell the developer that they should properly clear loops etc.
that stuck in memory in different circumstances.
For example:
In the Arena the fps are slowing down more and more with each round you play.
After 10-15 rounds it's getting noticeable. Looks like some classes are more
affected. Ice-WL and Wind-BD are very affected.
In 6vs6 you see "ghost-animations" of team-members or enemies that died.
In 6vs6 if you turn you camera while dead and you respawn, the camera
is not set back to normal view-direction.
All this things show, that loops and settings are not properly cleared and reset
after certain events (re-spawn, arena-match, ...).
We had those things in UE3 and it seems like they are even a bit worse in UE4.