Any good way to debug world partition for lost assets?

So we got a world setup with World partition.
And it seem a rogue static mesh or other actor has been misplaced to the furthest edges of the universe.

Is there any good way to debug this, or is it just a matter of removing every asset in the outliner until we find the guilty party?
We have tried to load the corner furthest away from the actual playable space. Drag selected in the area, tried to see if a new asset has loaded. But so far nothing.