For those who are interested in the official patch (not available in the steam or GOG versions of the game) which fixes the bugs on the Economy Map for the game, you can get it here:

https://forum.paradoxplaza.com/forum/threads/crusader-kings-dv-2-1-beta-patch-new-beta-patch-released-on-15-october-2008.331766/#post-8983876

Just copy the contents to the game's installation folder and replace the original files.