Fixed issues
The following issues have been fixed since Citrix Virtual Apps and Desktops 7 1912 LTSR CU3:
Citrix Policy
- When creating a policy in a Citrix Cloud environment and filter using the organizational unit for domain A, the user in domain B might not have the ability to log on. The issue occurs when accessing a published application or desktop. [CVADHELP-17179]
Citrix Provisioning
Citrix Provisioning 1912 CU4 documentation provides specific information about the updates in this release.
Citrix Director
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On-premises Citrix Director and the Citrix Virtual Apps and Desktops service Monitor tab might display the following message even when the RDS license is working as expected.
Microsoft RDS licensing has exceeded its grace period.
[CVADHELP-17469]
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Assigning the VDA to a Delivery Group and enabling the VdaDataCollection setting on the Delivery Controller might cause the VDA data collection engine to restart intermittently. The issue occurs when any group policy settings have been updated. [CVADHELP-18361]
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Searching a user by selecting an assigned or a static desktop with no active sessions might fail with the following error message displayed in Citrix Director:
Cannot retrieve machines
[CVADHELP-18327]
Citrix Studio
- Clicking the Find a solution link on the error message displayed in Citrix Studio might open an incorrect link. [CVADHELP-17800]
Delivery Controller
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When licensing breaks, a session might continue to work on License caching mode for 30 days. After 30 days, the License caching mode ends and the connection fails. [CVADHELP-16487]
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Upgrading Citrix Virtual Apps and Desktops to version 1912 LTSR might not update the Citrix.AzureRmPlugin.dll.config configuration file and the connection to Microsoft Azure Resource Manager might fail. [CVADHELP-16839]
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The Delivery Controller might fail to connect to the database with the following error message. The error results in performance issues.
Event 1201 The connection between Citrix Broker Service and the Database has been lost.
This error occurs when a multi-line table function in SQL like, DAGetSessionUidsInCatalogScope or DesktopGroupScope is called in an environment that is running a large number of sessions. For example, if 100k sessions are running and 100K Uid entries are made in a single table, the performance gets affected and the connection fails.
[CVADHELP-17021]
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The MonitorData.[Machine] table present in the Monitoring database might include duplicate entries. [CVADHELP-17025]
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Attempts to disable the Hypervisor Health alerts in Citrix Director might fail.
To enable the fix, set the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\Monitor\Service\Toggles
Name: HypervisorMonitoring
Type: DWORD
Value: 00000000
[CVADHELP-17218]
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The site test might fail when the network connectivity among Delivery Controllers in different satellite zones is blocked. [CVADHELP-17273]
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A Delivery Group administrator assigned with custom scope might not be able to retrieve the list of reboot schedules or manage them. [CVADHELP-17683]
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Attempts to update catalogs with names containing special characters, such as
&and$, might fail when the updated master image is not promoted to the VDAs. [CVADHELP-17686] -
With both multi-site aggregation functionality configured and the “SessionReconnection” property set to SameEndPointOnly in the entitlement policy rule, a new session might be launched instead of reconnecting to the active session. [CVADHELP-17692]
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When you upgrade Citrix Virtual Apps and Desktops to version 1912 LTSR and reboot the XenServer, the virtual machines might get stuck in the Unknown power state and fail to refresh in Citrix Studio. [CVADHELP-17750]
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Adding a hosting unit on the Delivery Controller with the Fully Qualified Domain Name (FQDN) written in upper case characters as HTTPS URL or HTTP URL, might fail. [CVADHELP-17862]
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Attempting to update the hosting connection password for the Microsoft System Center Virtual Machine Manager (SCVMM) based hypervisor might result in a timeout error. [CVADHELP-17909]
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Starting or restarting the Citrix Monitoring service during an upgrade might result in database connectivity failure and loss of old data. To prevent this, set the default retention in accordance with the Platinum edition (PLT). [CVADHELP-18069]
Linux Virtual Delivery Agent
Linux Virtual Delivery Agent 1912 CU4 documentation provides specific information about the updates in this release.
Metainstaller
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When installing or upgrading a VDA, the SetDisplayRequiredMode value under the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\Graphics might be deleted. [CVADHELP-17031]
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The user personalization layer is not installed. [CVADHELP-17672]
Microsoft Teams Optimization
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Microsoft Teams optimized calls might fail with the ctxsvchost.exe process exiting unexpectedly because of the faulting CtxTeamsSvc.dll module. [CVADHELP-16918]
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The HTML5 Video Redirection Service (txHdxWebSocketService) might exit unexpectedly. [CVADHELP-17146]
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When using Microsoft Teams in HDX optimized mode within a published desktop, audio calls might disconnect. [CVADHELP-17341]
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While attempting to join a call, the Citrix HDX HTML5 Video Redirection Service (WebSocketService.exe) might exit unexpectedly causing the call to fail. [CVADHELP-17424]
Profile Management
Profile Management 1912 CU4 documentation provides specific information about the updates in this release.
Session Recording
Session Recording 1912 CU4 documentation provides specific information about the updates in this release.
StoreFront
StoreFront 1912 CU4 documentation provides specific information about the updates in this release.
VDA for single-session OS
Content Redirection
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A black patch might appear on the screen when using Explorer. The issue occurs when connected to endpoints using certain AMD GPU models. [CVADHELP-17057]
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When using some third-party applications, the Websocketagent.exe might use a high percentage of the CPU. The issue occurs when the Browser Content Redirection or HTML5 video redirection policy is enabled. [CVADHELP-17067]
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This fix is an enhancement to HdxWebProxy to interoperate with its Blue Coat web proxies. [CVADHELP-18078]
Keyboard
- EDT MTU Discovery might calculate an incorrect MTU when paths between the VDA and the client are asymmetrical. As a result, the session launch is successful. However, the keyboard and the mouse are unresponsive. [CVADHELP-16654]
Session/Connection
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VDAs might unregister intermittently when IPv6 is enabled. [CVADHELP-14847]
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The VDAs might unregister and remain so. [CVADHELP-16445]
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After launching a session, the audio running on Microsoft Windows might display a red X that cannot be removed. [CVADHELP-16815]
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Clipboard mapping might be blocked when you initially connect from a virtual desktop session to a client and vice versa. Upon disconnect and reconnect, the clipboard mapping works only from the virtual desktop session to the client. [CVADHELP-17039]
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To update custom text in a watermark, log off and then connect back to the session. [CVADHELP-17056]
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When setting the DPI to a value other than 100% within a VDA, the DPI value might reset to 100%. The issue occurs when attempting to lock a desktop. [CVADHELP-17276]
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With the Multi-stream policy enabled, sessions launched on Linux endpoints might disconnect. The issue occurs with VDA Version 1912 LTSR. [CVADHELP-17301]
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When using Microsoft Teams in HDX optimized mode within a published desktop, audio calls might disconnect. [CVADHELP-17341]
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Reconnecting to a session with the user personalization layer policy enabled, might fail. [CVADHELP-17369]
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Usage of the AMD graphics card on a single session VDI desktop might fail. [CVADHELP-17757]
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Citrix connection licenses are consumed when you disconnect user sessions that were connected through a physical machine VDA. [CVADHELP-17802]
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When using an NVIDIA GPU, the frequency of frames in full-screen mode might not exceed 60 fps (frames per second) even after configuring the screen to maximum frequency. [CVADHELP-17904]
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The table copy option might be disabled or unavailable in certain third-party applications. To enable the option, set the following registry key:
HKEY_LOCAL_MACHINE\CurrentControlSet\Control\Citrix\wfshell\virtual Clipboard
Name: DisableFileSupport
Type: DWORD
Value: 00000001
[CVADHELP-17986]
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This fix enables logging of the Virtual Channel Allow List. For more information, see Virtual channel security. [CVADHELP-18129]
Smart Cards
- Accessing smart cards using the Microsoft Edge browser with SFRhook enabled, might cause the msedge.exe process to exit unexpectedly. [CVADHELP-17956]
System Exceptions
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The Citrix Desktop Service (BrokerAgent.exe) might generate a large number of ID 1010 events when using OU based Controller discovery through a direct access VPN tunnel. [CVADHELP-16754]
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Microsoft Teams might fail to optimize when one of the CtxSvcHost.exe processes exits unexpectedly. The issue occurs because of the faulting Citrix HDX Teams Redirection system service. [CVADHELP-16946]
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The Citrix Desktop Service (BrokerAgent.exe) might experience an access violation and exit unexpectedly. [CVADHELP-17055]
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The HTML5 Video Redirection Service (CtxHdxWebSocketService) might exit unexpectedly. [CVADHELP-17146]
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The wfshell.exe process might exit unexpectedly, causing new application launches from published applications to fail. [CVADHELP-17310]
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The VDAs might experience a fatal exception on icausbb.sys and display a blue screen with bug check code, 0x3B. [CVADHELP-17339]
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While attempting to join a call, the Citrix HDX HTML5 Video Redirection Service (WebSocketService.exe) might exit unexpectedly causing the call to fail. [CVADHELP-17424]
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The winlogon.exe process might exit unexpectedly. The issue occurs because of the faulting module, PicaWinlogonHook64.dll. [CVADHELP-17651]
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Audio and video in a Microsoft Teams optimized video conference call might disconnect and the HdxRtcEngine.exe process might exit. [CVADHELP-17741]
VDA for multi-session OS
Content Redirection
-
A black patch might appear on the screen when using Explorer. The issue occurs when connected to endpoints using certain AMD GPU models. [CVADHELP-17057]
-
This fix is an enhancement to HdxWebProxy to interoperate with its Blue Coat web proxies. [CVADHELP-18078]
Keyboard
- EDT MTU Discovery might calculate an incorrect MTU when paths between the VDA and the client are asymmetrical. As a result, the session launch is successful. However, the keyboard and the mouse are unresponsive. [CVADHELP-16654]
Printing
- When using the Save Print Output As option to print to a file in a seamless session, the print window might not display correctly. [CVADHELP-16614]
Session/Connection
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VDAs might unregister intermittently when IPv6 is enabled. [CVADHELP-14847]
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The VDAs might unregister and remain so. [CVADHELP-16445]
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When using certain third-party applications, a black screen might appear when the application opens another window. [CVADHELP-16956]
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Clipboard mapping might be blocked when you initially connect from a virtual desktop session to a client and vice versa. Upon disconnect and reconnect, the clipboard mapping works only from the virtual desktop session to the client. [CVADHELP-17039]
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Setting the value of HideStatusMessages to 1 to hide the Starting bar might cause the registry key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System\ to not work as expected. [CVADHELP-17138]
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With the Multi-stream policy enabled, sessions launched on Linux endpoints might disconnect. The issue occurs with VDA Version 1912 LTSR. [CVADHELP-17301]
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When using Microsoft Teams in HDX optimized mode within a published desktop, audio calls might disconnect. [CVADHELP-17341]
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Certain third-party applications might become unresponsive in a seamless session. [CVADHELP-17309]
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Starting an SSL session on Citrix Virtual Apps and Desktops LTSR version CU1, CU2, or CU3 might fail with the following error message:
Your session ‘delivery group name’ did not launch successfully due to error code 3500. Please contact your administrator for more information about the error.
[CVADHELP-17421]
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The Hooking driver, CtxUvi might unload when using docker containers. [CVADHELP-17614]
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This fix provides enhancements to the Virtual Channel Allow List feature. As a result, you can only open Citrix virtual channels in the virtual apps and desktops sessions. You can also add custom virtual channels to the allow list using the Virtual Channel Allow List policy settings. [CVADHELP-17918]
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After upgrading Citrix Workspace app to version 1909 or later, you might not be able to move the language bar smoothly in a seamless session. [CVADHELP-18118]
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The table copy option might be disabled or unavailable in certain third-party applications. To enable the option, set the following registry key:
HKEY_LOCAL_MACHINE\CurrentControlSet\Control\Citrix\wfshell\virtual Clipboard
Name: DisableFileSupport
Type: DWORD
Value: 00000001
[CVADHELP-17986]
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This fix enables logging of the Virtual Channel Allow List. For more information, see Virtual channel security. [CVADHELP-18129]
Smart Cards
- Accessing smart cards using the Microsoft Edge browser with SFRhook enabled, might cause the msedge.exe process to exit unexpectedly. [CVADHELP-17956]
System Exceptions
-
The Citrix Desktop Service (BrokerAgent.exe) might generate a large number of ID 1010 events when using OU based Controller discovery through a direct access VPN tunnel. [CVADHELP-16754]
-
Microsoft Teams might fail to optimize when one of the CtxSvcHost.exe processes exits unexpectedly. The issue occurs because of the faulting Citrix HDX Teams Redirection system service. [CVADHELP-16946]
-
The Citrix Desktop Service (BrokerAgent.exe) might experience an access violation and exit unexpectedly. [CVADHELP-17055]
-
The HTML5 Video Redirection Service (CtxHdxWebSocketService) might exit unexpectedly. [CVADHELP-17146]
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The wfshell.exe process might exit unexpectedly, causing new application launches from published applications to fail. [CVADHELP-17310]
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While attempting to join a call, the Citrix HDX HTML5 Video Redirection Service (WebSocketService.exe) might exit unexpectedly causing the call to fail. [CVADHELP-17424]
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When you launch a published application, winlogon.exe might exit unexpectedly and the user session might disconnect. [CVADHELP-17602]
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Published Universal Windows applications (UWA) might fail to launch with the following exception:
System.Runtime.InteropServices.COMException (0x80270134)
[CVADHELP-18116]