SwiftUI .onOpenURL not called every time when opening app from Widget using Link(destination:)

I am opening my app from a Widget using a custom URL scheme. The app does open every time, but .onOpenURL is not called consistently — sometimes it fires, sometimes it does not.

Widget code

Link(destination: makeBMILink(entry: entry)) { resultView } .buttonStyle(.plain) func makeBMILink(entry: MyWidgetEntry) -> URL { var components = URLComponents() components.scheme = "myapp" components.host = "calcwidget" components.queryItems = [ URLQueryItem(name: "weidgetType", value: CalcConvertType.BMI.rawValue), URLQueryItem(name: "gender", value: entry.data?.bmiGender ?? ""), URLQueryItem(name: "weight", value: entry.data?.bmiWeight ?? "0"), URLQueryItem(name: "height", value: entry.data?.bmiHeight ?? "0"), URLQueryItem(name: "age", value: entry.data?.bmiAge ?? "0") ] return components.url! }

App side (SwiftUI)

.onOpenURL { url in if url.host == "calcwidget" { print("onOpenURL called:", url) // Handle widget deep link } }

Observed behavior

Tapping the widget always opens the app

But .onOpenURL:

✅ sometimes gets called

❌ sometimes does NOT get called

This happens especially when:

Opening the app from the widget repeatedly

App is already running in foreground/background

No crashes, no invalid URLs

What I’ve verified

URL scheme is registered correctly

Link(destination:) is used (not Button)

URL is valid (verified by logging)

.onOpenURL is attached to a visible SwiftUI view

The same URL sometimes works, sometimes doesn’t

Question

Why does .onOpenURL not fire every time when opening the app from a Widget using Link(destination:), even though the app opens successfully? Is this expected behavior in SwiftUI / WidgetKit, or am I missing something in state handling?

What I am looking for

Explanation of why .onOpenURL may not appear to fire

Whether repeated opening with the same URL affects delivery

Best practice to reliably handle widget deep links in SwiftUI