Respawn villains and loot (Assassin's Creed: Valhalla)

Hello everyone! The question is to people who have passed such a game of Assassins Creed Valhalla and are well versed in it. In general, he passed the first island, freed his own, then sailed to another island and then somehow decided to return to the first island, where he freed his own in the house. In general, I am sailing, and there the otrespavshie villains and loot in barrels reappeared. Is this normal or did I do something wrong during the passage?