The app only works some of the time

My wife and I stop by for breakfast quite often and we try to use the app. Many times it does not work. Our app shows it is the latest version but it does not work all the time and is very annoying.

Today the app. opened with an ad for a buy 1 get 1 free McMuffin. There was no scalable coupon for that and the restaurant would not honor the ad without the coupon. We ended up going to Burger King for breakfast.

SignFixers about McDonald's, v5.5.0