When I try to enter Engineering mode for a controller, I get the following message:

"Object.hasOwn is not a function"

This occurs for all the submenus, I/O configuration, Modbus, M-bus, KNX PL-Link, BACnet references and BACnet objects.

Device Assignement and Programming modes seem to work OK.

The version of ABT Site is V5.2.0, Build: 52.0.2771.3 (Patches 1 and 3 installed).

Edit:

I have now tried moving to anothe installation of ABT. Versions of ABT and Xworks are the same, though the Windows environment is different. However, when I try to restore an Archive, it returns with a message that the project is locked. This appears to refer to the project I am trying to restore, not the project I am restorig to. How can I change the lock status of an Archive project?

Did you solve the problem? I have exactly the same message in engineering mode..

Please let me know if there is an answer!

"Object.hasOwn is not a function"

If you get this error in ABT Site, most likely the Microsoft component "WebView2" is not installed or outdated. This component is normally installed with Microsoft Edge browser. For normal Windows installation, it is updated via standard Windows updater and therefore (and for security reasons) it is mandatory to make sure, the PC has frequently internet connection and Windows update is performed.

For Windows Server installation, it can be that this component is not automatically updated by Windows updater.

The latest WebView2 component can be downloaded anyway via the official Microsoft Homepage or user this link (Evergreen Bootsrapper) :
https://go.microsoft.com/fwlink/p/?LinkId=2124703