I've had to take the ranch house down. Even though I tested it three times in Custard, I still found the cabinet in a copy in my game. I think I remember something now about the file attaching itself during the upload process itself, so my testing the files may or may not have helped.
If you downloaded it, delete it from your game. If I remember correctly, the counter will not effect your game if you do not access the lot. If anyone has already placed the lot in game, let me know and I'll let you know what to do from here. Well, this only applies if the copy from the Studio was corrupted. I honestly panicked and deleted them before downloading a copy to test. So, again, run it through Custard to see where it stands.
I think at this point I am going to have to make a choice between building to share and using CC. I don't see any responsible way to do both.
I think I will simply give up using CC, since sharing my builds is so much fun. But it will mean losing access to my own builds that use custom content, including my beloved 4 Alice Street project.
I have run them through Custard and will post them on Sim File Share, since it seems that each time they pass through the game the file gets re-attached.