If you plan to use Android 8 (Oreo) device, then it is time to upgrade to MobileIron Core 22.214.171.124 or 126.96.36.199
The following App Store issue has been resolved in the latest releases.
Apps@Work was not working against the Android 8.0 (Android O) release. Users could not view Apps@Work; instead, they saw that the page was loading with a progress icon. This was observed on all supported versions of Core and the production version of Mobile@Work on Google Play.