There's a wall pillar that's not centered with its bottom half on the northwest wall in the medium side-room downstairs.
It looks like the bottom section just needs to be nudged over a bit.
There are many homes with such errors @WIZZARD2K , some more egregious than others (take a look at the spacing on the Princely Dawnlight porticos) However, the only one I know to be fixed are... well only one, and I'm not sure why that particular person's issue was chosen to be fixed but no others.