Issue

When opening the WebHMI and navigating to diagrams, the error  "Script error in DocumentLoadEvent due to the MutationEvent not being defined" pops up and the TGML page will not load.

Product Line

Power Scada Operation 2020

Power Scada Operation 2020 R2

Power Scada Operation 2021

Ecostruxure Power Operation 2022

Ecostruxure Power Operation 2024

Environment

Windows Server

Windows Pro

Windows Enterprise

SQL Server

Cause

This was caused by the deprecation of the MutationEvent enum used in the TGML scripts.

Resolution

This has been resolved via the hotfix attached.