I am unable to sign in to the Extreme Game Center app on my phone. I can successfully sign in to the https://extremeportal.force.com website, but when I try to sign in as an Extreme partner through the app and am redirected to the same website, after I successfully sign in, I am redirected back to the app, see a short loading circle animation, and get an "Invalid Sign In" message. If I intentionally enter incorrect credentials, I already get the expected error message on the website, not in the app.
I have already tried to reset my password, but the app continues to show me the error message.