Skip to content

Known Issues and Limitations of Personal Desktop Delivery and Windows DVM Tools

  • Last Updated Date: 31-March-2026
  • Release: HyWorks v4.0

Note

The known issues list is updated with every release. Listed below is the latest summary of issues.

Auto Scaling and Power Management

Bug ID Description
65074 During the capacity plan scale-down of a non-persistent SHD pool, the Action Processor immediately marks one VM as passive and deletes it, bypassing the expected shutdown step. All VMs should complete shutdown before un-provisioning begins.
63977 Due to a time difference between the VM and the Controller, VMs may be incorrectly triggered for a power cycle. Time zones may differ across nodes, but the system time must be correctly synchronized.

Personal Desktop Delivery and Windows DVM Tools

Bug ID Description
64937 Disconnect reason codes for personal desktop sessions are available in controller logs only when the session is terminated from the Management Console. Sessions terminated from within the desktop may not have a disconnect reason recorded.
64349 After a desktop VM is powered off and back on, the DNS Name and IP Address may not appear in the Desktop Details panel, even if they are visible in the grid view.
62339 Windows Explorer crashes and the desktop becomes inaccessible during an RDP session on Windows 11 25H2 after installing the Windows update KB5067036. Check workaround and permanent fix details here.
61486 When a VM is removed from the controller but remains on the hypervisor, the VM Scale Booster logs a warning every 10 minutes for each heartbeat event received from that VM.
59917 DVM tools upgrades applied through the desktop pool option have no lasting effect on non-persistent pools. The VM reverts to its restore point on user logout, restoring the older version. Workaround: Apply DVM tools upgrades to the Gold Master and recompose the pool.
49714 In a Master Pool with VM Selection Strategy 0 (Stored Procedure), 'Ignore powered on VMs' and 'Ignore powered on (IP) VMs' options do not function. Powered-on VMs are still selected.
48260 Desktop login may not complete in a Master Pool that contains pools configured with different domain names. A single domain is supported for authentication across all pools in a Master Pool.
48237 Existing desktop pools cannot be associated with a Master Pool after creation. The association is only available at pool creation time and cannot be changed afterward.
48215 In some cases, duplicate client entries for the same user may result in multiple desktop assignments from the same pool.
24985 The HyWorks Desktop Agent logs an error, "An invalid argument was supplied", after the IP address of a VM is changed.
24930 The VM scale booster does not create the required firewall rule for port 5672, which desktop agents use to communicate. The rule must be made manually if Windows Firewall is enabled on the VM scale set server.
24000 The latest VM scale booster v3.4.0.80 is incompatible with older versions of HyWorks controllers (v3.3-R3(13832) or lower).
23975 During installation, the VM scale booster does not generate appropriate logs if it cannot configure AccopsMQ.
23963 If the Desktop Agent service is restarted during a recording session, the recorded file may become corrupted and fail to upload.
23824 Providing a user with administrative privileges does not work on VMs with a Japanese OS.
23823 The HyWorks Desktop agent cannot process a user whose username contains Japanese characters, and the session logs out.
23414 When the HyWorks Windows DVM Tools are uninstalled, the firewall rules created for the built-in USB redirection driver are not removed; they must be removed manually.
22385 When DVM Tools are upgraded/repaired, the built-in USB redirection driver is uninstalled and reinstalled, requiring a reboot.
22370 While installing the latest DVM tools, the option to install the USB redirection driver is checked by default, even if the newest version is already installed.
22027 Upgrading the DVM tools may fail, or replacing the new binaries of integrated components, e.g., AUEM and recording modules, may fail when the upgrade is performed during a running session. Recommendations: Upgrades should be performed when no sessions are running on the VM.
19564 The HyWorks Desktop Agent logs an error, "An invalid argument was supplied", after the IP address of a VM is changed.
18844 The DVM Tools installer briefly enters a non-responsive state during uninstallation.
18102 The VM Scale booster logs show the customization status as 'not initiated' even when the customization option is disabled.
12906 DVM Tools continues to receive upgrades even when it fails on the desktop end.
7292 HyPrep logs may not have appropriate logs for the following failures, which may be leading to faster resolution of problems: 1. The domain joining user does not have adequate permissions to join the machine to the domain. 2. The domain mentioned is not correct.
7289 HyPrep does not change the SIDs on customization. Workaround: Use Sysprep if it needs to change the SID.
7288 HyPrep does not change locale and time zone. Workaround: Use Sysprep if the SID needs to be changed.
7105 Sysprep fails after you remove or update Microsoft Store apps that include built-in Windows images. Reference: [Sysprep fails with Microsoft Store apps - Windows Client.
536 The USB cleaner utility attempts to remove system devices but fails due to permissions.

Detailed Information on Issues

VDI62339

  • Summary of Issue: Windows Explorer crashes, and the desktop is inaccessible in the RDP session on Windows 11 25H2 after installing KB5067036.

    • Affected Operating System: Windows 11 25H2 with Windows update KB5067036

  • Root cause: This occurs due to a conflict with the built-in USB redirection driver.

  • Workaround: Uninstall the Built-in (Eltima) USB Redirection Driver (v10.0.2520.0) module installed with DVM tools version 3.4 if not required.

  • Permanent Fix: The fixes are delivered with HyWorks DVM Tools v3.6-SP2. Link to release.