Can’t check into U.S. to Canada flight

There appears to be a bug present which is troublesome as I’m a frequent flyer between the U.S. and Canada. When flying a U.S. to Canada flight, e.g. Chicago to Kitchener, I’m unable to check in using the app. The app forces me to enter a U.S. temporary address even though I’m departing the U.S. and I’m a Canadian resident, before the confirmation button appears at the bottom. When I enter some address in, the button appears, but when I click on it, I get an error saying that I have to provide the address, which I just did. I can’t proceed. I have to go to the American web site to check in.

Krakatos about American Airlines, v4.2.0