Update Failure
Most recent updates has errors with the log in feature. System would not recognize a registered account, Facebook or google login information. Neither will it allow you to reset the password or register a new account. Attention McDonalds - App developers... instead or being concerned about pushing updates out to users based on schedule- invest in a test platform and quality assurance/testers which would elevate such issues.
Tippah about
McDonald's, v5.5.1