Why is rotationEffect moving vertically too?

I have my animation for the rotation working beautifully, but the image is also moving vertically. Why?

struct SyncView: View {
	@State var isSyncing = false

	let animation: Animation = Animation.linear(duration: 2.0).repeatForever(autoreverses: false)

	 var body: some View {
		 VStack(spacing: 16) {
			 HStack {
				 VStack(alignment: .leading) {
					 Text("Linked Device's Name")
					 Text("Updating (Last update: Oct 1, 2022)")
						 .font(.callout)
						 .foregroundColor(.gray)
				 }
				 Spacer()
				 Text(Image(systemName: "arrow.triangle.2.circlepath"))
					 .foregroundStyle(Color.yellow)
					 .font(.title)
					 .rotationEffect(Angle.degrees(isSyncing ? 360 : 0))
					 .animation(animation, value: isSyncing)
			 }
		 }
		 .padding()
		 .onAppear {
			isSyncing = true
		 }
	 }
}