Chromebook updates on z-app

I have been looking into an issue that has been reported where chromebooks cannot update unless they log out of Z-App. I have setup fiddler and reviewed all the URL"s in use and ensure they are setup for No-AUth and NO-SSL inspection thinking that could be the cause. I am now wondering is it possible the chrome OS updates cannot make use of the Z-App tunnels possibly since Z-app is an android app. ANyone else having this issue on chromebooks?