[FIXED] Black shadow on ceiling above indoor pools

Ceilings show a dark shadow above any indoor pool.

http://i61.tinypic.com/24opysl.jpg

I realize that this might be related to this thread http://answers.ea.com/t5/The-Sims-4-Bug-Reports/Black-Shadows-on-Ceiling-of-Open-Story/m-p/4407832#U4407832

However, in the case of the pool there is a partial fix for it. Go into build mode and delete the pool:

http://i61.tinypic.com/2ez7c49.jpg

and then restore it be using undo (ctrl-z):

http://i57.tinypic.com/9hsv8p.jpg

Then when the pool is back the lighting is normal again. Unfortunately, this does not persist. As soon as you leave the lot and come back (basically anything that causes a load screen, including restarting the game) then the nasty black shadow is back.

Removed CC and mods for testing.

Digital download version, pre-ordered and pre-downloaded.

OR, GTW, LSP, PPSP, SD

NVidia GeForce GTX 550 Ti, driver version 353.82.

Intel i7-2600K CPU @ 3.40GHz, 8GB RAM

Windows 7 Professional, Service Pack 1

@BryonyRae