After you update to Microsoft Endpoint Configuration Manager current branch, version 1910, the Delete Aged Discovery Data maintenance task deletes records for active users or groups.
Note This update applies to specific builds of Configuration Manager version 1910, as detailed in the "Update information" section of this article.
This update is also superseded by the following update rollup:
KB 4537079 Update Rollup for Microsoft Endpoint Configuration Manager current branch, version 1910
Users who experience this problem in System Center Configuration Manager current branch, versions 1906 or 1902 should refer to the following article to resolve this problem:
4537087 Active users and groups are unexpectedly deleted by the Delete Aged Discovery Data task in Configuration Manager
Update information for Microsoft Endpoint Configuration Manager current branch, version 1910
This update is applicable only to early update and globally available installations of Configuration Manager, version 1910 that are installed by using one of the following package GUIDs:
To verify which build is installed, add the Package GUID column to the details pane of the Updates and Servicing node in the console.
Users who installed an early update ring version of 1910 that have a different package GUID should, instead, apply the following update:
4535819 Update for Microsoft Endpoint Configuration Manager version 1910, early update ring
How to obtain the hotfix
Microsoft Download Center
The following hotfix to resolve this problem is available for download from the Microsoft Download Center:
After you download the hotfix, see the following documentation for installation instructions:
To apply this hotfix, you must have Microsoft Endpoint Configuration Manager, version 1910 installed by using one of the package GUIDs that are mentioned in the "Update information" section.
You don't have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any previously released hotfix.
The English version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.