Fixed issues
The following issues have been fixed since Citrix Virtual Apps and Desktops 7 1912 LTSR (initial release):
Citrix Director
- 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 Policy
- Servers might disconnect and become unresponsive unless you restart the Group Policy engine (CseEngine.exe) service. [CVADHELP-12987]
Citrix Provisioning
Citrix Provisioning 1912 CU1 documentation provides specific information about the updates in this release.
Citrix Studio
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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]
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When you add App-V packages to Citrix Studio, some packages might show default icons instead of customized icons. [CVADHELP-13338]
Delivery Controller
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Some published applications might cause application enumeration to fail. The issue occurs when a corrupted application icon is present in an .exe file. [CVADHELP-13133]
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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]
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When you add administrators of other domains to Citrix Studio, Studio might display the following error message:
Error: Failed to validate the Central Configuration Service Location.
You do not have sufficient permissions to administer the Site using Studio, or there is a problem with the Delegated Administration service.
The issue occurs if a domain controller in any one of the domains is unreachable. [CVADHELP-13651]
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With this fix, Machine Creation Services (MCS) supports the following new Citrix Hypervisor features: Guest UEFI boot and Secure Boot. [CVADHELP-14210]
-
On Citrix Hypervisor, attempts to add machines to an existing Machine Creation Services (MCS) catalog might fail. [CVADHELP-14212]
Federated Authentication Service
- In the properties of the Citrix_SmartcardLogon certificate template, the description of the Key Usage extension should contain ‘Digital signature’ and ‘Key encipherment’ only, but lists additional items. However, the certificates issued using this template are correct. [CVADHELP-14040]
Linux Virtual Delivery Agent
Linux Virtual Delivery Agent 1912 CU1 documentation provides specific information about the updates in this release.
Metainstaller
- When you attempt to launch a desktop, a gray screen might appear. The issue occurs after you upgrade a VDA from Version 7.6 LTSR Cumulative Update to Version 1912. [CVADHELP-13969]
Profile Management
Profile Management 1912 CU1 documentation provides specific information about the updates in this release.
Session Recording
Session Recording 1912 CU1 documentation provides specific information about the updates in this release.
StoreFront
StoreFront 1912 CU1 documentation provides specific information about the updates in this release.
Universal Print Server
Client
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When you attempt to launch an application, the Citrix Print Manager Service (CpSvc.exe) might exit unexpectedly. [CVADHELP-13945]
-
The Print Spooler service might exit unexpectedly. [CVADHELP-13954]
Server
- Due to an access violation, the Universal Print Server (UPServer.exe) might exit unexpectedly. [CVADHELP-10627]
VDA for single-session OS
Installing, Uninstalling, Upgrading
- When you upgrade a VDA, the
MaxVideoMemoryBytesregistry key might revert to the default value. [CVADHELP-13629]
Printing
-
When you attempt to launch an application, the Citrix Print Manager Service (CpSvc.exe) might exit unexpectedly. [CVADHELP-13945]
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PDF printers automatically created might not be deleted. The issue occurs if they are created under HKEY_LOCAL_MACHINE\SOFTWARE instead of HKEY_CURRENT_CONFIG. [CVADHELP-14280]
Session/Connection
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When the Windows Media Player moves from the current track to the next track in the playlist, audio might not play at the beginning of the next track. The issue occurs if Windows Media redirection is enabled. [CVADHELP-11639]
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When you reconnect to an active session on another machine, redirected printers and client drives might be missing. The issue occurs when you move from one machine to another without locking or disconnecting the active user session. [CVADHELP-13035]
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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:
To enable the fix, create the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\Wds\icawd
Name: PacketIntegrityChecks
Type: DWORD
Value: 1
[CVADHELP-13063]
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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]
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When you attempt to resize the window of a published desktop, hardware encoding might be disabled. [CVADHELP-13818]
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A VDA might become unresponsive after restart. The issue occurs when security software such as Symantec SEP enforces security scans. [CVADHELP-13832]
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With the Automatic keyboard display policy enabled, when you click on the Google search box, the keyboard might not pop up automatically. The issue occurs when a session is running on the Internet Explorer, Firefox, or Chrome browsers. [CVADHELP-14065]
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When you right-click the user icon in the Start menu, the context menu fails to display the Shut down or Log off options. Instead, the context menu displays the same options as the context menu that appears after you right-click a tile. [CVADHELP-14149]
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With the time zone policy set to Use local time of the client, the time zone might be redirected incorrectly when you launch a session through Citrix Workspace app for HTML5. For example, the time is set to UTC+01:00 instead of UTC+00:00. As a result, the Automatically adjust clock for Daylight Saving setting is cleared instead of being checked. [CVADHELP-14471]
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In a double-hop scenario, a single user might consume two Citrix Concurrent User (CCU) licenses. Double hop is when a user launches the HDX session within another HDX session (for example, when you launch a published application within a virtual desktop session). [CVADHELP-14409]
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When you attempt to move small objects on the screen, corruption might occur on a single pixel. The issue occurs when the Visual quality policy is set to Build to Lossless. [CVADFIX-8214]
Smart cards
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After you configure smart card authentication on Windows 10, smart card pass-through authentication might fail if you launch a desktop in a user session. The issue occurs when you launch a desktop from a thin client. [CVADHELP-11757]
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When you use a fast smart card to log on to a session, the PIN prompt might appear twice. [CVADHELP-12949]
System Exceptions
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USB redirection can cause VDAs to experience a fatal exception, displaying a blue screen with bug check code SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (7e). Also, global lock for USB redirection might not be released, thus blocking other redirections. [CVADHELP-9237]
-
VDAs might experience a fatal exception on ctxdvcs.sys and display a blue screen with bug check code 0xc0000409. [CVADHELP-13102]
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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]
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VDAs might experience a fatal exception on picadm.sys and display a blue screen with bug check code 0x22. [CVADHELP-14431]
User Experience
- Desktop sessions might display artifacts that obscure screen contents and other portions of the display. [CVADHELP-13301]
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
Content Redirection
- When you configure the browser content redirection policy in Server Fetch and Client Render mode, you route traffics only through a statically configured web proxy. [CVADHELP-14134]
Printing
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Attempts to print documents to a different output printer tray might fail. The print job uses the default tray to print documents even if you choose a different tray in the Print dialog box. [CVADHELP-13492]
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When you attempt to launch an application, the Citrix Print Manager Service (CpSvc.exe) might exit unexpectedly. [CVADHELP-13945]
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PDF printers automatically created might not be deleted. The issue occurs if they are created under HKEY_LOCAL_MACHINE\SOFTWARE instead of HKEY_CURRENT_CONFIG. [CVADHELP-14280]
Session/Connection
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When the Windows Media Player moves from the current track to the next track in the playlist, audio might not play at the beginning of the next track. The issue occurs if Windows Media redirection is enabled. [CVADHELP-11639]
-
When you launch a published application on a multi-session VDA, the Windows RunOnce registry key might not execute. [CVADHELP-11991]
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Attempts to launch an application might fail. As a result, session details under Task Manager cannot be found and the following application status in Citrix Studio appears: application not running. When the issue occurs, the VDA might reregister and the following error message appears:
Event ID 1048: WCF Failure or Rejection by Broker
[CVADHELP-12856]
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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:
To enable the fix, create the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\Wds\icawd
Name: PacketIntegrityChecks
Type: DWORD
Value: 1
[CVADHELP-13063]
-
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]
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A VDA might become unresponsive after restart. The issue occurs when security software such as Symantec SEP enforces security scans. [CVADHELP-13832]
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A user session might close unexpectedly. The issue occurs with unauthenticated (anonymous) users when they launch a second application in windowed mode. [CVADHELP-13917]
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After you upgrade a VDA to Version 1909.1, some third-party applications such as
RemoteScanmight 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]
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When you attempt to reconfigure Version 1912 of the VDA to use a custom VDA port from the command line, this error message might appear:
The process could not be completed … Cannot find Ica Configuration file … IcaConfigConsole.exe.
[CVADHELP-14052]
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With the Automatic keyboard display policy enabled, when you click on the Google search box, the keyboard might not pop up automatically. The issue occurs when a session is running on the Internet Explorer, Firefox, or Chrome browsers. [CVADHELP-14065]
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This fix introduces a policy setting that configures virtual channels using multi-stream ICA through a Citrix policy rather than through a registry key. [CVADHELP-14136]
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If you connect a USB microphone to a user device and launch a session, the USB microphone might fail to redirect. The USB device displays as Optimized, Policy Restricted. [CVADHELP-14301]
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In a double-hop scenario, a single user might consume two Citrix Concurrent User (CCU) licenses. Double hop is when a user launches the HDX session within another HDX session (for example, when you launch a published application within a virtual desktop session). [CVADHELP-14409]
-
When you attempt to move small objects on the screen, corruption might occur on a single pixel. The issue occurs when the Visual quality policy is set to Build to Lossless. [CVADFIX-8214]
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
-
USB redirection can cause VDAs to experience a fatal exception, displaying a blue screen with bug check code SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (7e). Also, global lock for USB redirection might not be released, thus blocking other redirections. [CVADHELP-9237]
-
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]
-
VDAs might experience a fatal exception on picadm.sys and display a blue screen with bug check code 0x22. [CVADHELP-14431]
User Experience
- Desktop sessions might display artifacts that obscure screen contents and other portions of the display. [CVADHELP-13301]
User Interface
- When you move a seamless window, graphic content for an application might be distorted. The issue occurs when you move some parts of the window outside of the desktop area. [CVADHELP-14209]
Virtual Desktop Components – Other
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When you launch an App-V application from a VDA hosting many App-V applications, the VDA might deregister. The issue occurs when the time it takes to process associated policy files is long. [CVADHELP-12592]
-
When you open a file with the associated published App-V application, the application opens. But the file fails to open in the associated application. [CVADHELP-13971]
In this article
- Citrix Director
- Citrix Policy
- Citrix Provisioning
- Citrix Studio
- Delivery Controller
- Federated Authentication Service
- Linux Virtual Delivery Agent
- Metainstaller
- Profile Management
- Session Recording
- StoreFront
- Universal Print Server
- VDA for single-session OS
- VDA for multi-session OS
- Virtual Desktop Components – Other