Delta app crashing after logging in

I noticed starting on Sunday that the Fly Delta app would crash after 3-4 seconds. I deleted and reinstalled the app, same result. I then deleted the app, closed any open app, restarted the phone and reinstalled - same outcome. I found that if I used the app "as a guest" it remained stable. It was only when I logged in with my Skymiles account that it would consistently crash after 3-4 seconds.

Contacting Delta, they said they are not seeing this as a widespread issue and to contact Apple.

I tried clearing the usage of Delta as a stored password or the use of Face id to see if that was interfering somehow.

Any one else seeing this too?

iOS 13.2.2, iPhone XS.