Maddening Hex, does the psychic damage trigger…

Maddening Hex, does the psychic damage trigger off of every target cursed by you within range?

@JeremyECrawford For Maddening Hex, does the psychic damage trigger off of every target cursed by you within range, (One creature cursed by Hexblade’s Curse and another cursed by the spell Hex, or the like) or only a single cursed target per turn?