As per the title, I've drafted up a bug report but just wanted to sanity check this is not intended behavior before I sent off the report. Issue: If you present a sheet in SwiftUI using the .sheet(isPresented: ) and have multiple presentation detents on the view such as .presentationDetents([.medium, .large]) the view being presented appears to not correctly deinitialise when the view is dismissed. I have a short sample view which can easily demonstrate this. import SwiftUI struct ContentView: View { @State var showSheet = false var body: some View { Button("Show Sheet") { showSheet = true } .sheet(isPresented: $showSheet) { DetailView() // With a single detent, the below class prints "this is denit". .presentationDetents([.medium]) // When multiple detents are specified the detail view appears to not deinit properly. // .presentationDetents([.medium, .large]) } } } struct DetailView: View { let deinitPrinter = DeinitPrinter() var body: some View { Text("foobar") } } final class DeinitPrinter { init() { print("this is init") } deinit { print("this is deinit") } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } } If you run this code with just the .presentationDetents([.medium]) you get the expected behavior of the console printing: this is init this is deinit every time you open and close the sheet. However if you comment out .presentationDetents([.medium]) and uncomment out .presentationDetents([.medium, .large]) you only get this every time you open and close the sheet this is init Just wondering if this is expected behaviour and if it is, why? If not I can happily press submit on my bug report. Cheers.