Windows 10 19H1 (Insider Preview Builds) – Citrix Known Issues

Microsoft releases regular builds of the next version of Windows 10 through their Insider Preview Program. Citrix does not support Insider Preview builds as stated on CTX224843 – Windows 10 Compatibility with Citrix XenDesktop.

This article is intended to capture known issues with Windows 10 19H1 that have been identified so far through Citrix internal testing and customer reports for the benefit of customers who are conducting early testing in preparation for when the Semi-Annual Channel release of 19H1 becomes available.

  • Citrix Virtual Delivery Agent (VDA) for Windows Desktop OS
  • Citrix Receiver for Windows
  • Citrix Provisioning Services (PVS)
  • Citrix Workspace Environment Management (WEM)
  • Citrix User Profile Management (UPM)

Note:

  • This is a live article and is updated as and when new information is available.
  • All the issues mentioned in this article have been noticed with 19H1 builds up to 18261.

Known Issues

The following are the known issues:

Issue 1

Issue Description

Print command from inside an ICA session of Windows 10 19H1 client fails to print using mapped Citrix UPS configured XPS Printer.

[HDX-13664]

Problem Cause

XPS Viewer is not available on Windows 10 v1803 and later versions by default. It is available as a Feature on Demand.

Solution

To install XPS Viewer, follow the below steps:

  • Open Command Prompt in elevated mode
  • Run the command “Dism /online /add-capability /CapabilityName:XPS.Viewer~~~~0.0.1.0”

Note:

  • The machine should be connected to the Internet for above command to acquire and install XPS Viewer.


Issue 2

Issue Description

Citrix User Profile Manager (UPM) stops working after Windows 10 is upgraded to Windows 10 19H1.

[TPV-1307]

Problem Cause

Some of the registry keys related to Citrix UPM are getting removed during upgrade process.


Solution

This issue is fixed with the Microsoft’s March 2019 Updates for Windows 10. Install the respective March 2019 update OR its replacement on your existing Windows 10 version before upgrading to Windows 10 19H1.

Issue 3

Issue Description

After HDX 3D Pro VDA is upgraded from Windows 10 to 19H1, the policy “Use hardware encoding for video codec” is not in effect and Hardware Encoding is disabled. The Registry information related to BitMap Provider is also not as expected post upgrade.

[LCM-4955, LCM-4956]

Solution

Citrix is working with Microsoft to resolve this issue.

Workaround:

  • After upgrading to 19H1, restart the VDA and run below commands:

C:Program FilesCitrixICAServiceNvFBCEnable.exe -enable

  • Make sure FBC is enabled by running

C:Program FilesCitrixICAServiceNvFBCEnable.exe -checkstatus


Note – If status is still shown as disabled, then Nvidia driver may need to be reinstalled. After reinstalling the driver, try to enable FBC again.

Issue 4

Issue Description

Users are unable to uninstall Desktop Lock if Windows 10 was upgraded to 19H1 with Desktop Lock installed.

[TPV-744]

Problem Cause

During the upgrade,the key CtxBackupShell is getting removed under [HKLM -> SOFTWARE -> Microsoft -> Windows NT -> CurrentVersion -> Winlogon] . As a result, an error message “1: Read failed HKLMSOFTWAREMicrosoftWindows NTCurrentVersionWinlogonCtxBackupShell=(32bit on 32bit)” is displayed.

Solution

Citrix is working with Microsoft to resolve this issue. As a workaround, the user may manually add the registry key manually and then uninstall Citrix Desktop Lock by following below steps:

Caution! Refer to the Disclaimer at the end of this article before making changes to Registry

  1. Right click on Start button and choose Run
  2. Type ‘Regedit’ and click Ok.
  • On x86 machine, browse to HKEY_LOCAL_MACHINE -> Software -> Microsoft -> Windows NT -> CurrentVersion -> Winlogon
  • On x64 machine, browse to HKEY_LOCAL_MACHINE -> Software -> WOW6432Node -> Microsoft -> Windows NT -> CurrentVersion -> Winlogon
  1. Right click on Winlogon in left pane, choose New -> String Value
  2. Enter the value as ‘CtxBackUpShell ’ and hit enter.
  3. Double click on ‘CtxBackUpShell ’ and enter the value as ‘explorer.exe’.
  4. Close Registry Editor and uninstall Desktop Lock.

Issue 5

Issue Description

Pass-Through Authentication (SSON) fails to work when Windows 10 is upgraded to 19H1 with Workspace App installed.

[TPV-1916]

Problem Cause

While upgrading to 19H1, few registry entries required by SSON gets removed under HKLM > System > CurrentControlSet > Control > NetworkProvider.

Solution

This issue is resolved with builds 18358 and newer.

Issue 6

Issue Description

Printers part of Universal Print Server are no longer mapped after Windows 10 is upgraded to Windows 10 19H1. This issue is not seen with fresh install of Windows 10 19H1.

[LCM-5677]

Solution

There is no solution at this time. Citrix is working with Microsoft to resolve this issue.

Issue 7

Issue Description

Unable to print using Universal Print Drivers for printers mapped from a Universal Print Server on Windows 10 19H1 build 18342

[LCM-5691]

Solution

Citrix is investigating this issue.

Issue 8

Issue Description

While upgrading to 19H1 build 18346, the upgrade fails and rolls back to earlier Windows 10 version. This issue is noticed even when Citrix products are not installed.

[TPV-2159]

Problem Cause

This issue is not noticed on x86 platforms. Changes in build 18348 is causing this issue. This issue was not noticed with earlier builds.

Solution

This issue is no longer seen with builds 18361 and newer.


Issue 9

Issue Description

“Direct3D11 error: out of memory” error message may be seen within VDA with Applications like Unigine Heaven 3.0 in DirectX 11 mode on Windows 10 19H1 x64 build 18342

[LCM-5714]

Problem Cause

DirectX 11 enabled apps inside VDA with a GPU assigned fails to work with an out of memory error.

Solution

There is no solution at this time. Citrix is working with Microsoft to resolve this issue.

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