I also can confirm that issue for Windows 10 edition. Even when I load an old Minecraft World (played before 1.0.2.25) where I had successfully marked multiple locations in maps, now all, except for the latest set, are gone.
Please restore old functionality.
I also can confirm that issue for Windows 10 edition. Even when I load an old Minecraft World (played before 1.0.2.25) where I had successfully marked multiple locations in maps, now all, except for the latest set, are gone.
Please restore old functionality.