Well, I resolved it not long after posting. I had to make PostContainer a struct and update the containers themselves using the index. See example below. if var index = self.containers.firstIndex(where: {$0.subreddit == subreddit}) { // Update previous container self.containers[index].timestamp = Date() self.containers[index].posts = posts self.containers[index].active = true print("Updated old container") } else { // Create the container // Set to active, because its a new query let container = PostContainer(timestamp: Date(), subreddit: subreddit, posts: posts, type: .search, active: true) self.containers.append(container) print("Created new search container") } I guess because with structs, you're creating a new version of the object when it's updated and @Published is able to see the change. With class, it seems to struggle to know if there's been a change or not.