I'd also suggest that you tell the member to meet with her new Bishop, and explain the reasoning behind her desire to keep her address hidden. There's likely additional info behind this, that will help the new ward work well with her - could be simple, or complex. I occasionally find very active and engaged members who have been with us for a while, that I suddenly notice have privacy settings that I wouldn't expect. In those cases, I generally find a time to kindly talk with the member about those settings, and I've always found members are grateful for my interest. Sometimes they're not aware of it, other times they forgot to change it back. And more importantly, I've found cases where there's deeper meaning behind their privacy setting, that is very helpful in ministering and supporting them.