Maps generated outside of spawn area don't show user's location pointer on maps created far away from spawn area. I have a map of the area stored in a chest there, but it won't work straight away. It will work when navigated to from spawn area map after you enter their relevant coverage area, but not when stored in a chest and used after a fresh login.
This can be closed, it works as intended, if you are too far from the place the map was made, you will not see your location on the map