It sounds like you're running into an issue where the 3D Secure (3DS) flow is prematurely failing when you try to confirm the payment intent after the app is restarted, even though the clientSecret and setup seem correct. The issue could be related to how the payment confirmation process is triggered after the app restarts, as well as how the payment state is handled in your app during the reinitialization.

Here's the code : first pic of the code : [1]: https://i.sstatic.net/nzkDItPN.png