Export data from a Table in an embedded report through Teams

I'm confronted with an issue when trying to export data out of an Embedded Power BI report (Power BI Premium EM1 subscription) used through Teams.

The Report is displaying alright but when I try to export data from a table visual:

1. I get the attached error message when selecting the .xlsx File Format (Error Exporting data / Sorry, we couldn't export your visual data right now. Please try again later)
   

    

2. When selecting .csv, I get no error message but nothing happens (the csv file is not downloaded)

Important information, this issue is only happening through Teams since I can export the data in .xlsx or .csv format through the Power BI Service (with a Power BI PRO user).

Is this due to Power BI Premium EM1 limitations for "Free" power bi users accessing Embedded reports through Teams?