Finding Zero Polygon painted terrain object

Hello guys, I calculated lighting in a scene and got this:

"Warning InstancedFoliageActor_1 4 element(s) with zero triangles in static mesh ‘AlaskaCedar_Hero’ "

But it seems there is no way of either finding those actors, nor see them using some debug mode (afaik) So I put the question to you guys:

Is there a way to see, select, edit and/or delete these (or any other error related to actors for that matter) when they are painted on a terrain?

I also have two suggestions:

  1. When I painted trees on a terrain it became evident that all of them needed to be lowered into the terrain a bit. Would it be possible to have a ‘update all instances’ with new settings icon? So one don’t have to go about and paint the updates over a whole terrain, or worse, delete it all and do it again. Just because of a change in some settings.
  2. When clicking on a message line in ‘Message Log’ both focus to and select the object referred. Even if it is a terrain actor.

Best regards/
Mike

I take it there is no solution to finding zero painted polygons then?