Duo Mobile - passcodes need to be manually refreshed

While we make the transition to the universal prompt and verified push, we are now requiring people to retrieve and enter passcodes.

We are getting complaints that passcodes used sometimes do not work. That there sometimes is no refresh option in the app for the token. And sometimes the user has to close and reopen the duo mobile app to get a working passcode.

Has anyone else been experiencing this or have feedback?