I'm running into a minor but annoying issue between SwiftUI and Firestore where any animations based around state changes arent triggered when the data changes.

This changes the colour on the divider corectly but without the animation. If I make 'project' an @State object / var the change becomes animated but no external changes to the firebase data are processed by the app (they are present when the app is reloaded).

            Divider()
                .frame(width: 10)
                .overlay(project.priorityColour)
                .onTapGesture {
                    if (!project.isComplete) {
                        withAnimation {
                            if project.priority == 3 {
                               project.priority = 0
                            } else {
                                project.priority += 1
                            }
                        }
                    }

Data is loaded from Firestore into an object array and updated with a Firestore listener when changes occur - this works without an issue when the display object is not marked as @State.

Can anyone see a way to make this work with animations ( Specifically 'withAnimation{ }' ) ?