Odd Graphic Problem?

[Bany]

I hope I'm posting in the right place. Apologies if not.
I have these three white panel looking things in front of one of my houses (see attached).
It disappears depending on the rotation of view, but most obvious when looking straight at the house. It's on the third floor.
I tried lowering the graphics all the way, removing walls, etc. Looking it up is impossible - just because I don't know where to start.

Any ideas on how to get rid of this?

Thank you,
Bany

[MrsFlynn]

Make sure drivers are up to date. If unsure how to do that, please see post link below.

Make Sure Drivers Are Up To Date
http://www.carls-sims-4-guide.com/forum/index.php?topic=21899.msg401681#msg401681

[Trip]

I once had a lot that had that issue too (and just one lot) but never found a fix for it. Maybe try saving the house, bulldozing it, and placing it again? Or try demolishing objects, walls, roofs, or so on near there to see if it's linked to either.

[Magz from Oz]

I had that once in an imported lot.  I just used the hammer tool in building mode to gently delete those things.