Semantic Data Model Activity Logs?

Hello Ipsifendus 

The Power BI Activity Log API allows you to track various activities across your tenant, including dataset interactions. While not specific to semantic models, it can help identify user actions related to datasets and reports
https://sqlserverbi.blog/2020/01/06/getting-started-with-the-new-power-bi-activity-log

If you are using Microsoft Fabric, you can analyze semantic model logs using KQL queries. This approach provides granular details such as executing users, application names, dataset IDs, and session counts

If your WS is premium 

Power BI Premium workspaces provide access to semantic model operation logs through the Eventhouse KQL database. These logs capture events such as query execution, partition processing, and user interactions.

if this is helpful please gives kudos and accept the answer 

Hi Ipsifendus 

Could you check the version of Excel that the user is running that is causing the issue and compare it to your version of Excel? My assumption is that they are running an older version of Excel, which means their client libraries that connect to the semantic model are older and that is why it is causing this com error.