I tried the above suggestion, only I didn't do a fresh new save game. I just enabled free build in the existing game, got the lot from my library, saved it all, didn't exit the game at all, but went to manage worlds and started over with the same Sim. It worked!
If all content is owned by EA no one has a "right" to use the word "stealing" when a reupload occurs. Yes, the more creative builds are wonderful, and credit IS given the original creator, but within the game it is setup to be able to reupload if a change has occured. Frankly, when I just "save to my Library" often I can't…