I tried today, using a vanilla install, adding a Map label and saving it. The game said it saved, but it didn't save at all. Can you please check this and ensure it is saving please? I cannot get it to save at all of any changes. Thanks.
Edits to the default maps do not save properly usually as they are over written each time you zone. If you have downloaded Goods or Brewells then you can edit those and it will save. If you would rather not download those maps then you can make a second sub folder and edit that one. some directions and further thoughts here https://forums.daybreakgames.com/eq/index.php?threads/why-wont-my-maps-save.257957/
Also, if you installed to the default location, somewhere under 'users' I believe, that has been know to cause problems because Windows does not like other programs messing with files. It is better to install to a separate folder, e.g. c:\games\everquest\