When you convert classic into customizable house the house sign and door remain (showing a double of each now); log out and back in to refresh, all is fine except you cannot secure or lock down items on the steps of the new customizable foundation. I get the message, "You must be in your house to do this." when standing on the stairs and, "This object is not in the house I am in." when standing inside and attempting to lock an item down on the steps. I tested this on a non classic house that did not need to be converted into a customizable plot and was able to lock things down freely onto the house steps, so the bug comes from converting the home?