Solved
When I go to take a house from the gallery, the furniture does not come with it
So in the sims 4 I really like using the gallery to use other houses people have created. I'll save the house to my library and then load it onto my lot.. but.... The furniture doesn't load with it. I selected the option of keeping the furniture but it still doesn't work. I might as well add this: sometimes if its a house with many levels, only the ground level will have missing furniture and the second level will have all the furniture.
Do you play with any CC or do the houses you pick have any CC on them? It's also important that you have the stuff packs or expansion packs needed for the furntiue they used.
If all of that looks good, then try clearing The Sims 4 cache files and try redownloading the houses.
