When I go to export to pdf from File -> Export Map, I see thin white lines that show up when I open up the map in Adobe. The lines appear only in the northern hemisphere in Russia, Canada and the United States.
These lines do not appear when it is saved as a .ai file or .jpg, only when saved as a pdf. When this pdf is opened in Adobe Illustrator, those thin white lines split the polygons.
Has anyone faced this problem before?