Row Level Security on web portal not working

Hi,

I'm creating a sample report with Row Level Security applied that is perfectly working on my Desktop version but when I publishing it, it doesn't work properly. The weird thing is that I can see all the data when I shouldn't.

Table A: EmployeeId, EmployeeName

Table B: EmployeeId, Email ([email protected])

Both tables joined by EmployeeId, BOTH directions applied, and "Apply security filter" option checked.

I used the "View as" option in the desktop with several users and the data is being filtered as expected, but when I publish it in the portal, I can see more data than expected.

I also added a card in the report using the USERNAME () expression, just to be sure that the login is fine, but the user is the one I expected.

Is there something I'm forgetting to do once it is deployed?

Thanks in advance