I have added two security groups in power bi service and shared the report with the people belongs to the group then i create a role in row level security and add this two security groups in the role but now the people in security groups not able to access my report.
I tested this with Distribution groups and it worked.
On Power BI Service, you can add security group as member of a role. But please note that this member has to be within your organization. You cannot add Groups created within Power BI. Please check for this.
Are they within your organization? Do they have Pro license?