The vendor has published 2 unique mention(s) for this bug: 1. When you use VDA version 1912 CU5 and OS version 2012 R2, various print jobs are failing from the production Citrix UPS print server with the following error message: CCgpStream::Open: WaitForMultipleObjects time out. InternalUpcRemoteOpenStream: Failed to Open Stream. Abort Job. 2. When you use VDA version 1912 CU5 and OS version 2012 R2, various print jobs are failing from the production Citrix UPS print server with the following error message: CCgpStream::Open: WaitForMultipleObjects time out. InternalUpcRemoteOpenStream: Failed to Open Stream. Abort Job. Latest urls for this bug: 1. https://docs.citrix.com//en-us/citrix-virtual-apps-desktops/2203-ltsr/whats-new/cumulative-update-5/fixed-issues 2. https://docs.citrix.com//en-us/citrix-virtual-apps-desktops/2402-ltsr/whats-new/2402-ltsr-initial-release/fixed-issues