RLS

Hi Experts,
I am trying to implement RLS on mixed mode (Direct & Import)

This is how my model looks like:

1. I created one Parent Power BI file where I have a Geo dimension table.
2. I created 2 child pbix where I am using direct query of Parent file.
3. Then I imported RLS table into child file using import mode. So this makes the Child report as mixed model.
4. Finally I created MRLs using anage roles in each child file where I am using this formula : "[Email]=userprinciplename()".