row level security

Dear Team,

One month back i have implementated role based security in Power BI free version which connects to online dynamics crm version 

.Its worked fine .

But today unforunately its giving an error that "This dashboard contains Power BI Pro content. Only users that have Power BI Pro will have access to it"

Please confirm is RLS feature no longer available in Power BI free version and has moved to Power BI Pro version ?

Thanks alot for your quick reply.