tl;dr
If you deploy published applications using Omnissa App Volumes and Omnissa Horizon 2603 or 2606, users may encounter an error message when launching the application. This is a known bug with Horizon 2603 and Horizon 2606. A hot patch connection server build is available from Omnissa Support to resolve the issue.
The Problem
After upgrading 2 of our Omnissa Horizon pods to version 2603, users reported error messages when attemping to launch published applications delivered through App Volumes. Users would see the error message: ‘Loading Failed: This application is currently not available. Please try connecting to this application again later, or contact your system administrator.’