Greater Restoration, a 5th lvl spell, can remove a curse. Does that mean there are potent curses Remove Curse can’t affect?

Remove curse & greater restoration both end a curse. If a curse is affected by only one of those spells, its description would say so. #DnD https://t.co/ux4TYGWd0Y

— Jeremy Crawford (@JeremyECrawford) November 14, 2016