mob grieving at wrong level

[SherlockH]

I was told that mob grieving should happen under sea level (y=63), however, in the server it only happened at y=56 or below. Should it be like this or not?

[HvPanda]

They can't grief in claimed area. The system only sees it as claimed when the owner builds under the sea level in the claimed area.

[SherlockH]

it doesnt matter, its still not gonna grief above y=56