Cannot log in to the Target App

I've seen that this topic has shown up previously but I'm unable to find any resolution. On my desktop Mac, I am able to access target.com from each of my browsers, including Safari. On my iPhone and Ipad, I can access target.com on all browsers EXCEPT for Safari. On iPhone and iPad, I am unable to log in using the Target app. The error I get is "Sorry, something went wrong. Please try again."

I've tried all of the suggestions of clearing Safari cache and website data. I've deleted the app, rebooted the device, reinstalled the app, and it still doesn't work, and still doesn't work to target.com from the Safari app. There must be something broken or wedged between the some of the IOS internals and whatever Target is doing to verify the login.

I saw a suggestion about contacting the app developer - well all that does is take you to a generic help page on target.com that does not include any technical support links.