Login problem. "Oops, something went wrong - You can still start your tax preparation" then clicking "Start My Taxes" sends me back to the login page.

Login problem. After successfully verifying identity with texted login code I am presented with "Oops, something went wrong - You can still start your tax preparation" and a "Start My Taxes" button. Clicking "Start My Taxes" sends me back to the login page. This loop continues endlessly.