can an invisible creature be hit by a spell that targets “a creature you can see”? The most recent errata has me confused. What errata are you referring to?
— Jeremy Crawford (@JeremyECrawford) October 19, 2017
The PHB errata referring to heavily obscured seems to affect the invisible condition No change has been made to the definition of the invisible condition.
— Jeremy Crawford (@JeremyECrawford) October 19, 2017