Here's the thing, this object is floating in both ugrids and LOD space (or whatever you call them), in ugrids space it definitely has a form ID (that I can disable with console too if I want, in which case the object only appears as LOD) and the LOD doesn't like you said, I remember that it pointed Dyndolod as reference, I'll have to open the game and screenshot this additional info though.
In regards to grass, do I need to run Dyndolod again after regenerating TexGen? Because it takes almost 2 hours to do it's thing, and my pc is not a potato by any means either.
Another thing, does updating Dyndolod comes with any caveat? Do I just overwrite it's tool's files?