Must you maintain line of sight with your spell’s target?

@JeremyECrawford If a spell requires you to see the target creature, but creature leaves sight while you concentrate, does the spell end?

— Jordan Fultz (@Gossip_Raptor) November 29, 2015

Must you maintain line of sight with your spell's target? See the Sage Advice Compendium: https://t.co/BHncQ3ly4J https://t.co/EWFlkpV37x

— Jeremy Crawford (@JeremyECrawford) December 4, 2015