Excel online- This workbook contains external data connections or BI features that are not supported

I connected to SQL DB from Excel and Loaded the Model.

When I open excel in online and try to interact with slicers or Click on refresh all connections. Throwing below error.

In Power BI also Same issue.

I checked preview features option enabled in SharePoint Admin site.

What else i missed here, is There any settings do i need to enable.

I am Using 0365 Enterprise Trail. help me here