Update: The player says they were removing all the blocks from their ship when they crashed.
I noticed this ethereal entity when at a home base that was causing some lag. So, with the admin command "/change_sector_selected", I moved it to it's own sector and made a sector export. For the previous issues with these ethereal entities, I could bring them back into the world by exporting the sector and then reimporting it. However, for this entity, it is remaining ethereal even when the sector export is reimported. I also tried running a "/repair_sector" command on the sector that had the ethereal entity in it, but it had no effect.
I have been noticing some of these ethereal entities around, but haven't reported it yet, so I am starting with this one.
Ship Name: Black Rose
I have attached the sector export here:
Server logs from this time period are here: