Hi, I'm wondering if someone has a solution to this problem.

I recently built a castle. it was all looking good until I started placing windows. Now when the top floor of the building is visible, the windows on the ground floor vanish at certain angles. I've not noticed it on other lots, just this one. I'm sorry if the description is a little vague, hopefully with the picture it will make sense.

Oh and i know there is CC in the picture. the same thing happens with or without CC.

The issue with windows disappearing in The Sims 4 is usually caused by outdated CC, or possibly one of your Mods. Glitches from game features like the moveobjects (MOO) cheat, angled walls, or graphic settings being too low can also cause problems. To fix it, try updating mods, disabling MOO, checking graphic settings, or reloading the game. If it's a pack-specific issue, you might want to report it to the EA forum to get help. If all of this fails, the best option is to ALWAYS repair your game.

So all of the above didn't work but I did finally resolve it. It was only on one lot and it was just too high. I'd raised the terrain, then raised the foundation. All floors were at the tallest setting. When I set the game to view the roof line of the highest floor, it seems it simply couldn't cope with the windows and doors on the first floor. lowering the ground height and the foundation, not completely but by some way made it work.