I've built several *.pbix report files using the Power BI Desktop App. I have 2 slicers on each report, and they function fine. But as soon as I publish these reports up to powerbi.com, the slicers are empty. When I edit the report on powerbi.com, I can still see the field that each slicer uses in the settings, but data which should be visible inside the filter on the report disappears. All I wind up with is two empty boxes for the slicers up on powerbi.com.