Demolition junk everywhere

[Kerensky97]

I've been trying to tackle the issue of hovering items all over my ROTC settlements and I've found that every plot has an upside down cone shaped cluster of wood debris in the center. NPCs are stuck by the wood as if it was solid but when I walk through it it stops hovering in air and clatters to the ground. So it's nice being able to atleast knock it out of the way manually but the pieces can't be cleaned or deleted (unselectable in CMD for "markfordelete") so it seems that every time a plot blows itself up the scraps from the explosion are just filling every room and getting stuck there. Is there any way for all this to be cleaned up? I was expecting that the debris of demolition animations would eventually disappear.

Also I had a problem with too many simultaneous demolition explosions causing a CTD but turning that off the Demolition FX seems to have sorted that. Now I just have piles of demolition trash everywhere.