Array of Objects from Firestore returns nil in Swift even though it's not Empty?

private func loadUserLearntChants() {
    Task {
        do {
            try await profileViewModel.loadCurrentUser()
            if let userId = profileViewModel.user?.userId {
                let user = try await userManager.getUser(userId: userId)
                if let learntChants = user.learntChants {
                    learntChantIds = learntChants
                }
                print(user)
            }
        } catch {
            print("Error: \(error)")
        }
    }
}

When I print user it says learntChants is nil

Array of Objects (learntChants) is returning nil:

Screenshot from Firestore showing that learnt_chants isn't empty:

I read Unpacking Firestore array with objects to a model in swift, which said that you need to cast it to key-value type (Dictionary) first, then map it to LearntChant object

I tried this but it still didn't return anything

private func loadUserLearntChants() {
    Task {
        do {
            try await profileViewModel.loadCurrentUser()
            if let userId = profileViewModel.user?.userId {
                let user = try await userManager.getUser(userId: userId)
                if let learntChants = user.learntChants as? [[String: Any]] {
                    let learntChantObjects = learntChants.map { learntChant in
                        let chant = LearntChant(chantId: learntChants["chantId"] as? String ?? "none", voteType: learntChants["voteType"] as? String ?? "none")
                        return chant
                    }
                }
            }
        } catch {
            print("Error: \(error)")
        }
    }
}