Fixed issues

The following issues have been fixed since Citrix Virtual Apps and Desktops 7 1912:

Citrix Director

  • When you log on to Citrix Director for the first time after you restart Internet Information Services (IIS), the following error message might appear on the Trends page:

    No details are available.

    If you log off and log back on or if a different user logs on, Citrix Director displays HDX insight data correctly. [CVADHELP-12426]

  • Attempts to send messages to multiple users might fail with the following error message:

    Message cannot be sent. Unexpected server error. View Director server event logs for further information.

    The issue occurs with users who are filtered with Delivery group and Published Name for application instances in the Citrix Director console. [CVADHELP-12601]

  • When a Delivery Controller is powered off, Citrix Director displays the status of the Delivery Controller incorrectly. As a result, false alerts appear on the Infrastructure tab in Citrix Director. [CVADHELP-13835]

Citrix Provisioning

Citrix Studio

  • Attempts to start App-V applications in single user admin mode from VDAs might fail. The issue occurs when the value of the ApplicationStartDetails registry key is empty or if the application details are missing from the registry key. [CVADHELP-9214]

  • Attempts to launch an App-V application might fail with the following error message:

    Cannot start

    The issue occurs when large App-V packages are not fully streamed to VDAs. [CVADHELP-12889]

  • When you upgrade Citrix Studio from Version 7.6 to Version 7.15, the time it takes to open some wizards (such as Machine Catalog and Delivery Group) might increase. [CVADHELP-13267]

  • When you add App-V packages to Citrix Studio, some packages might show default icons instead of customized icons. [CVADHELP-13338]

  • When you attempt to add devices from PVS collection to a catalog in Citrix Studio, all target devices might be listed including machines that already exist in the catalog. [CVADHELP-13403]

  • When you attempt to change the executable path or the icon location of an existing app assigned to an Application Group, the following error message might appear:

    Unable to browse machines in the Delivery Group. Do you want to browse on the local machine?

    [CVADHELP-14199]

Delivery Controller

  • When Microsoft Azure Resource Manager receives a lot of requests, Machine Creation Services (MCS) might wait for 10 minutes before proceeding with the requested operation. [CVADHELP-9976]

  • Attempts to create machine catalogs, add machines, powering on machines, or restart machines might fail when using Azure Managed Disks. [CVADHELP-10108]

  • The Citrix Broker Service might exit unexpectedly with an Event ID 1000. The issue occurs because of the faulting module, LicPollEng.dll. [CVADHELP-12019]

  • When you attempt to view custom reports for application instances from Citrix Director, some fields might display null values instead of application end times. [CVADHELP-12733]

  • Application enumeration might cause a significant increase in CPU usage on the SQL server hosting the site database. [CVADHELP-13043]

  • Attempts to groom resource utilization data from a table in the Monitoring database might fail with an execution timeout. [CVADHELP-13075]

  • The idle time of user sessions might incorrectly appear as N/A in Citrix Director. [CVADHELP-13099]

  • A virtual machine where a user session is running might shut down unexpectedly. The issue occurs when the Automatic Client Reconnection feature fails to trigger a Delete power action that is pending in the database. [CVADHELP-13165]

  • When using the PowerShell command Get-ApplibAppvPackage, the command might not recognize AppVApplications as a returned property. [CVADHELP-13296]

  • When using applicable product releases, the administrator might not be able to create a host connection in Studio if NSX-T networking is enabled in the VMware environment. The issue occurs when the MCS does not enumerate the opaque network in NSX-T. [CVADHELP-13393]

  • After daylight saving time ended for the year 2019 and with the restart schedule configured, an unexpected scheduled restart occurred only for the Delivery Group. [CVADHELP-13486]

  • Local Host Cache (LHC) files might disappear after download starts. As a result, the old files remain or LHC files fail to appear in the location C:\Windows\ServiceProfiles\NetworkService. [CVADHELP-13980]

HDX RealTime Optimization Pack

Licensing

Linux VDA

Profile Management

Universal Print Server

Client

  • Due to an access violation, the Universal Print Server (UPServer.exe) might exit unexpectedly. [CVADHELP-10627]

  • The Print Spooler service (spoolsv.exe) might enter a deadlock. As a result, the documents fail to print and Microsoft Office applications do not launch. [CVADHELP-13315]

VDA for single-session OS

Keyboard

  • With the Citrix generic client Input Method Editor (IME) feature enabled, an application might exit unexpectedly when you use the Chinese client IME to input special characters and numbers in the application. The issue occurs in desktop and app sessions running on Microsoft Windows 10 Version 1809 and Windows Server 2019. [CVADHELP-13961]

Printing

  • After you upgrade a VDA to Version 7.15 Cumulative Update 4, the Citrix Print Manager Service (CpSvc.exe) might exit unexpectedly. [CVADHELP-12888]

Session/Connection

  • The user device session might stop responding for a few minutes when using certain third-party applications. [CVADHELP-11195]

  • When you disconnect a user session from the first endpoint and then reconnect to the same session from a thin client, the client side audio devices might be listed in an incorrect order within the VDA. [CVADHELP-11245]

  • Reading data from a client drive might take a long time after you change the value of the following registry key to 1 on a VDA:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\Wds\icawd

    Name: PacketIntegrityChecks

    Type: DWORD

    Value: 1

    [CVADHELP-13063]

  • The VDA might become unresponsive when it restarts automatically. The issue occurs when the winlogon service is waiting on the termsvc process. This wait remains forever because of the garbage collection thread from tdica.sys. The issue occurs on the VDA that is configured for a RemotePC. [CVADHELP-13228]

  • Attempts to launch a session on a VDA might fail when you use some third-party vulnerability scanners. [CVADHELP-13306]

  • Attempts to reconnect to a session might fail with the following error message:

    Cannot start desktop.

    [CVADHELP-13320]

  • When you attempt to shadow a user session for remote assistance through Citrix Director, the session might disconnect. You cannot reconnect to the session unless you close or end the shadowing operation from Director. The issue occurs with VDA Version 7.6.8000. [CVADHELP-13654]

Smart Cards

  • When you use a fast smart card to log on to a session, the PIN prompt might appear twice. [CVADHELP-12949]

System Exceptions

  • VDAs might experience a fatal exception on ctxdvcs.sys and display a blue screen with bug check code 0xc0000409. [CVADHELP-13102]

  • An application that uses the Electron framework might exit unexpectedly with the following error message:

    {EXCEPTION} Illegal Instruction An attempt was made to execute an illegal instruction.

    [CVADHELP-13440]

User Experience

  • You applied Fix LD0419. When you attempt to change the cursor shape in an application without changing the cursor name, the cursor shape might not be modified. [CVADHELP-11841]

User Interface

  • The Devices tab might be missing from the Citrix Workspace – Preferences window (Desktop Viewer toolbar > Preferences). The issue occurs with a VDI desktop that runs on Microsoft Windows Server through a Server VDI switch. [CVADHELP-14158]

VDA for multi-session OS

Keyboard

  • With the Citrix generic client Input Method Editor (IME) feature enabled, an application might exit unexpectedly when you use the Chinese client IME to input special characters and numbers in the application. The issue occurs in desktop and app sessions running on Microsoft Windows 10 Version 1809 and Windows Server 2019. [CVADHELP-13961]

Printing

  • After you upgrade a VDA to Version 7.15 Cumulative Update 4, the Citrix Print Manager Service (CpSvc.exe) might exit unexpectedly. [CVADHELP-12888]

Session/Connection

  • With the Browser Content Redirection policy enabled, the Open in new tab option might not work. The issue occurs with VDAs running Microsoft Windows to which Citrix Workspace app for Windows or Linux connects. [CVADHELP-12800]

  • Servers might disconnect and become unresponsive unless you restart the Group Policy engine (CseEngine.exe) service. [CVADHELP-12987]

  • Reading data from a client drive might take a long time after you change the value of the following registry key to 1 on a VDA:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\Wds\icawd

    Name: PacketIntegrityChecks

    Type: DWORD

    Value: 1

    [CVADHELP-13063]

  • The VDA might become unresponsive when it restarts automatically. The issue occurs when the winlogon service is waiting on the termsvc process. This wait remains forever because of the garbage collection thread from tdica.sys. The issue occurs on the VDA that is configured for a RemotePC. [CVADHELP-13228]

  • Attempts to reconnect to a session might fail with the following error message:

    Cannot start desktop.

    [CVADHELP-13320]

  • When you attempt to reconnect to a session, the desktop might fail to load and a gray window might appear. The issue occurs with VDA Version 1909 running on Microsoft Windows Server 2019. [CVADHELP-13376]

  • COM port redirection might fail to work after Automatic Client Reconnection (ACR) reconnects to a session following a network disconnection. [CVADHELP-13926]

  • After you upgrade a VDA to Version 1909.1, some third-party applications such as RemoteScan might fail to scan a document and become unresponsive. The issue occurs because of the faulting module, twnhook.dll. [CVADHELP-13937]

  • The virtual keyboard might fail to appear automatically within a published application. [CVADHELP-14012]

Smart Cards

  • When you use a fast smart card to log on to a session, the PIN prompt might appear twice. [CVADHELP-12949]

System Exceptions

  • VDAs might experience a fatal exception on ctxdvcs.sys and display a blue screen with bug check code 0xc0000409. [CVADHELP-13102]

  • An application that uses the Electron framework might exit unexpectedly with the following error message:

    {EXCEPTION} Illegal Instruction An attempt was made to execute an illegal instruction.

    [CVADHELP-13440]