Fixed issues

Feb 06, 2018

XenApp/XenDesktop 7.6 LTSR Cumulative Update 5 contains all fixes that were included in XenApp and XenDesktop 7.6 LTSR, Cumulative Update 1, Cumulative Update 2Cumulative Update 3, and Cumulative Update 4, plus the following, new fixes:

Citrix Director

  • An exception might occur when you, as a custom administrator, cannot retrieve the Remote PC setting from the machine catalog. The issue occurs when you have permission to manage the machine catalog, but the scope does not contain the particular catalog. [#LC8170]

Citrix Policy

  • Group Policy Objects that contain both Citrix and Microsoft settings might not be enforced. This issue occurs when the extension unit in the list contains more than two GUIDs. [#LC7533]

  • When you open a second instance of Group Policy Editor (gpedit.msc), the Citrix Policies node does not open and the following error message might appear:

    “Unhandled exception in managed code snap-in.” [#LC7600]

  • When files in the local policies cache folder (%ProgramData%/CitrixCseCache) are set to “Read-only,” the policy settings might not be applied successfully. [#LC8750] 

Citrix Studio

  • Attempts to add machines to a Delivery Group by using the “NETBIOS” name for user association might fail. Instead, the domain name might appear. The issue occurs when the NETBIOS name uses the wrong URL. [#LC7830]

Controller

  • Attempts to add machines to a Delivery Group by using the “NETBIOS” name for user association might fail. Instead, the domain name might appear. The issue occurs when the NETBIOS name uses the wrong URL. [#LC7830]

  • The symptoms of this issue might vary and the following effects can be observed:

    • PowerShell queries might time out in large (5000+ VDA) sites.
    • A Citrix Studio search request might be slow or time out due to the size of a site.
    • Event ID 1201 “Connection to the database has been lost – Exception Timeout expired” might be logged on the Delivery Controller when the query runs for a long time. [#LC7833]
       
  • The AllowRestart policy for sessions on Server OS does not allow you to log off from the disconnected sessions. When you restart a disconnected session, the session is reconnected to the previous session instead of starting a new one. [#LC8090]

  • The connection between the Delivery Controller and the SQL Server might be lost intermittently due to a deadlock in the SQL database. [#LC8477]

  • In a large XenApp and XenDesktop environment, the stored procedure for Monitor database grooming does not work correctly if the size of the Monitor database is large. [#LC8770]

Installer

  • When the read and write permissions (only traverse permissions) are restricted on the parent folder of the folder that contains the installation media, attempts to install VDA software from the shared folder might fail. The following error message appears:

    “A non-recoverable error occurred during a database lookup.”  [#LC6520] 

Provisioning Services

Console Issues

  • The XenDesktop Setup wizard might fail after creating a template virtual machine. [#LC8018]

Server Issues

  • When the Boot Device Manager (BDM) is configured for the DHCP Discover, Offer, Request and Acknowledge (DORA) process, the process might not complete. The issue occurs when the DHCP relay sends the “OFFER” packet as a UNICAST packet. [#LC8130]

  • The same disk identifier is erroneously assigned to the vDisk residing in different stores when the existing vDisk was added using the “MCLI Add DiskLocator” command. [#LC8281]

Target Issues

  • Target devices might become unresponsive. [#LC7911]

Session Recording (Agent)

  • When user1 launches a session that is delivered by VDA1 that is being recorded and does not close the notification message in session1, the notification message does not appear in session2 that is delivered by VDA1. This can happen when the session is launched by user2 until user1 manually closes the notification message in session1. [#LC8132]

StoreFront

  • After upgrading StoreFront, attempts to log on to one of the servers can cause the server to not display the users’ application subscription data. The issue occurs because of the Microsoft peer mesh limitation due to which one of the peers might not detect itself online until the first mesh operation is attempted. [#LC1454]

  • With the Auto launch desktop setting enabled, the Multiple launch prevention option might not work. As a result, subsequent requests to launch the same instance of the desktop fail. [#LC7430]

  • After upgrading StoreFront 2.6 installed on a non-default drive, users’ application subscription data might not be retained. [#LC8046]

  • When you attempt to view the details of a desktop, details of an already viewed desktop might appear. [#LC8062]

  • With socket pooling enabled and the Site database connectivity inconsistent, the sockets in StoreFront might get exhausted when you continuously log on and log off. [#LC8514]

VDA for Desktop OS

HDX MediaStream Flash Redirection

  • Attempts to save Microsoft Office files such as Microsoft Excel spreadsheets that are running in a session with HDX seamless apps enabled can cause the files to exit unexpectedly.  [#LC8572]

Printing

  • Attempts to launch a published application might fail when the application is waiting for a mutex object in Citrix Print Manager service (cpsvc.exe). [#LC6829]

  • After you save printer properties by selecting Preferences in a published application, the settings might not be restored when you log off and then log back on to the session. The issue occurs on network printers that are redirected from the user device. [#LC7770]

Server/Site Administration

  • Changes you make to Advanced System Settings under Visual Effects apply to the current VDA for Desktop OS session but might not be retained for subsequent sessions. To make such changes persistent, set the following registry key:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Citrix Name: EnableVisualEffect Type: DWORD Value: 1 [#LC8049]

Session/Connection

  • When you launch certain third-party applications that are used for video conferencing with flexible resolution, the application might exit unexpectedly. [#LC6994]

  • When you establish a Skype for Business video call, a blue window border might appear after intersecting with the window of a third party application. [#LC7773]

  • A session running on a VDA for Desktop OS might become unresponsive when using legacy graphics mode. When the issue occurs, you might not be able to update anything on the Desktop Viewer, but the Desktop Viewer is not in an unresponsive state. Also, after 30-60 minutes, the previously unresponsive session recovers. [#LC7777]

  • With local app access enabled, using the interactive logon disclaimer policy might result in a black or gray screen. [#LC7798]

  • When performing an insert operation between two Microsoft Excel 2010 worksheets running on a Version 7.9 VDA, the Excel window might become unresponsive. [#LC7912]

  • In certain scenarios, seamless applications might not appear in seamless mode or certain features might not work. [#LC8030]

  • After you maximize and restore a published application multiple times, the mouse cursor might appear incorrectly and the application cannot be expanded vertically and horizontally. Also, the application does not cover the entire screen and a black border appears. [#LC8988] 

Smart Cards

  • When you log on to a session using a smart card, the session might become unresponsive until you disconnect and reconnect the session. [#LC8036]

  • The Citrix Smart Card Service might exit unexpectedly on a VDA. [#LC8386]

System Exceptions

  • The wfshell.exe process might exit unexpectedly, pointing to the taskbar grouping module.[#LC6968]

  • On systems with Hotfix Rollup Pack 7 installed, servers might experience a fatal exception, displaying a blue screen, on picadm.sys with bugcheck code 0x00000050 (PAGE_FAULT_IN_NONPAGED_AREA). [#LC6985]

  • Servers might experience a fatal exception, displaying a blue screen, on picadm.sys with bugcheck code 0x22. [#LC7574]

  • Servers might experience a fatal exception, displaying a blue screen, on vdtw30.dll with stop code 0xc0000006. [#LC7608]

  • VDAs might experience a fatal exception, displaying a blue screen, on tdica.sys with a bugcheck code. [#LC7632]

  • VDAs might experience a fatal exception, displaying a blue screen with bugcheck code 0x7E. The issue occurs when you leave the VDA session idle for some time. [#LC8045]

User Experience

  • Windows Media Player might display Microsoft AVI (.avi) files format as vertically flipped. [#LC8308]

  • The screen might not refresh with the logon prompt after you attempt to log on to a session that was locked previously. [#LC8774]

VDA for Server OS

HDX MediaStream Flash Redirection

  • Attempts to save Microsoft Office files such as Microsoft Excel spreadsheets that are running in a session with HDX seamless apps enabled can cause the files to exit unexpectedly. [#LC8572]

Printing

  • Attempts to launch a published application might fail when the application is waiting for a mutex object in Citrix Print Manager service (cpsvc.exe). [#LC6829]

  • After you save printer properties by selecting Preferences in a published application, the settings might not be restored when you log off and then log back on to the session. The issue occurs on network printers that are redirected from the user device. [#LC7770]

Server/Site Administration

  • Changes you make to Advanced System Settings under Visual Effects apply to the current VDA for Desktop OS session but might not be retained for subsequent sessions. To make such changes persistent, set the following registry key:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Citrix Name: EnableVisualEffect Type: DWORD Value: 1 [#LC8049]

Session/Connection

  • Attempts to reconnect to a session can fail intermittently and cause the VDAs for Server OS to go into “Initializing” status. The issue occurs when the VDA is registered again with a Delivery Controller. [#LC6647]

  • When you click “Cancel” on the progress bar of a session launch, wrong session information can remain on the Delivery Controller. As a result, the actual session is not created on the VDA and you might not be able to launch a new session. [#LC6779]

  • After undocking a laptop, session sharing might fail. The issue occurs when the VDA reregisters with the Delivery Controller while an-out-of-order notification is triggered during auto client reconnect. [#LC7450]

  • The microphone might be redirected intermittently in the user session even after setting the Client microphone redirection policy value to Prohibited.

    This fix addresses the issue. However, if you continue to observe the issue, apply the following registry key on the device with the microphone:

    • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\ica-tcp\AudioConfig
      Name: MaxPolicyAge Type: DWORD Value: Maximum time (in seconds) allowed between the last policy evaluation and the time of endpoint activation. Default is 30 seconds.
    • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\ica-tcp\AudioConfig
      Name: PolicyTimeout Type: DWORD Value: Maximum time (in milliseconds) that the system waits for policies after determining that the policies are not up to date. Default is 4,000 milliseconds. When the timeout occurs, the system reads the policies and continues with initialization. Setting this value to (0) bypasses the Active Directory policies check and processes policies immediately. [#LC7495]  
  • When you establish a Skype for Business video call, a blue window border might appear after intersecting with the window of a third party application. [#LC7773]

  • A session running on a VDA for Desktop OS might become unresponsive when using legacy graphics mode. When the issue occurs, you might not be able to update anything on the Desktop Viewer, but the Desktop Viewer is not in an unresponsive state. Also, after 30-60 minutes, the previously unresponsive session recovers. [#LC7777]

  • A spurious XenApp session might be displayed in Citrix Studio when a Remote Desktop session takes over a console session on a VDA for Server OS. [#LC7826]

  • When performing an insert operation between two Microsoft Excel 2010 worksheets running on a Version 7.9 VDA, the Excel window might become unresponsive. [#LC7912]

  • In certain scenarios, seamless applications might not appear in seamless mode or certain features might not work. [#LC8030]

  • Servers might become unresponsive on RPM.dll and the following error message appears:

    “Event ID 1009, picadm: Timeout waiting for response message from client” [#LC8339]

  • After you maximize and restore a published application multiple times, the mouse cursor might appear incorrectly and the application cannot be expanded vertically and horizontally. Also, the application does not cover the entire screen and a black border appears. [#LC8988] 

Smart Cards

  • When you log on to a session using a smart card, the session might become unresponsive until you disconnect and reconnect the session. [#LC8036]

  • The Citrix Smart Card Service might exit unexpectedly on a VDA. [#LC8386]

System Exceptions

  • The wfshell.exe process might exit unexpectedly, pointing to the taskbar grouping module. [#LC6968]

  • On systems with Hotfix Rollup Pack 7 installed, servers might experience a fatal exception, displaying a blue screen, on picadm.sys with bugcheck code 0x00000050 (PAGE_FAULT_IN_NONPAGED_AREA). [#LC6985]

  • Servers might experience a fatal exception, displaying a blue screen, on picadm.sys with bugcheck code 0x22. [#LC7574]

  • Servers might experience a fatal exception, displaying a blue screen, on vdtw30.dll with stop code 0xc0000006. [#LC7608]

  • VDAs might experience a fatal exception, displaying a blue screen, on tdica.sys with a bugcheck code. [#LC7632]

  • The Service Host (svchost.exe) process might experience an access violation and exit unexpectedly. The issue occurs because of the faulting module, icaendpoint.dll. [#LC7900]

  • Servers might experience a fatal exception, displaying a blue screen, on icardd.dll with bugcheck code 0x0000003B. [#LC8492]

  • Servers might experience a fatal exception, displaying a blue screen, on icardd.dll with bugcheck code 0x0000003B. [#LC8732]

User Experience

  • Windows Media Player might display Microsoft AVI (.avi) files format as vertically flipped. [#LC8308]

User Interface

  • The logoff screen might not appear when you attempt to log off from a Microsoft Windows Server 2008 R2 desktop session. You might be able to log off from the session, but the session appears as though it is disconnected unexpectedly. [#LC8016]

Virtual Desktop Components - Other

  • App-V applications located outside Virtual File System (VFS) servers or on the network drive might not work correctly when using Connection Groups. [#LC6837]

Fixed issues