Semantic Models execution packages greyed out in Jobs

Hi Community,

After creating a simple semantic model (one table) and deploying it to Power BI Premium I get an error for the connection to the source database. It says it cannot connect to the source database because of the credentials (we use SQL Authentication on our Azure SQL database in this case).

Would be nice if we could configure that from within TimExtender (and perhaps there is a way?).

After manually fixing this authentication issue. we are able to execute this endpoint.

This is confirmed by checking the Refresh History.
 

Now we try to add the created (and tested) execution package to a job. That is not possible because the execution package is greyed out in the Job and therefore to able to be added.

What could be reason why we are not able to add Semantic Model execution packages to a Job?

Thanks in advance.

Kind regards,

Eric