Hi @robertmenard63, welcome to the Cayenne Community.
That's strange. Can I as if you've been able to log into the iOS app in the past, or did you just grab it? As a sanity check, can you delete and re-install it from the App Store just to make sure you're in a fresh state?
If it continues I'll grab our iOS dev since the login seems OK on a global level and everything looks find with your account.