have found if you edit your profile in any way, you will loose your map location and have to re-inter it. Let's all be aware of this and check our map location under the map button to be sure we are still marked. I hope the administrators will look at this bug.
The map wants you to pick from the closest thing IT has for your address.
My address is 588 County Rd 93 Haleyville AL 35565
If I type that in it will not work. As I type it it will narrow it down to this address.
160-798 County Rd 93, Haleyville, AL 35565, USA
MY ONLY GUESS as to why the map does this has to be a "GPS lat and lon thing.
So if you edit your address in your profile after you set the pin in the map it will remove the address from the map.
Best to go to the map and set the pin and agree to what it finds. However some addresses are ok when you type them. So give it a try before you drop a pin to the closest location to your home.