I took a look at this in both my main save where I use mods and CC and in a test build in my build save which is vanilla. I could not duplicate the lines I see in your pics in either save. So, there is something else causing it for you. I'm not sure what it is but it could be a couple of things and you might want to do a little testing and take a good look at any CC build objects if the issue continues, or if you can't live with it. A new save will sometimes fix things like this.
This could be a remnant of either a mod or a CC item that is still in your save even though you've removed the file itself. It happens. Or it could be your graphics, either hardware or game graphics settings (tbh, probably not). You could take a good hard look at all your build CC and test to see if the issue appears in a new save. You can also try adjusting the game graphics settings. I tested on Ultra with all High or Very High settings and all, but the laptop mode checkboxes checked.
Sorry I couldn't find a more specific cause for you.
Hope this helps.
I wish it was a CC and/or mod issue. It's been years since I've used them and I've actually uninstalled and reinstalled the game since I stopped using them (more of a headache than they were worth for me). I'll mess around with the graphics to see if anything changes. Thanks for checking it out
