After playing with downloaded lots, (several of them) for many Sim days, I turned on my game to find that all custom wall coverings were missing? All other custom content (objects, clothes, make-up, etc.) shows up and plays just fine. Also lots that are in the neighborhood that have never had Sims live in them seem to be fine? Does anyone have an idea as to what could cause this. If it helps I have all EP and holiday and kitchen and bath SP. I am truely grateful for any help.