Microsoft has introduced an issue with the embedded widget in Business Central loading properly on the new
221 version. If your Sandbox or Production environments have been updated you may see a blank screen where you would normally see the lists.

eOne SmartView Intro

SmartView makings working with Microsoft SmartList a whole lot easier. See your SmartLists in seconds, add an unlimited number of filters, move your columns wherever you'd like them to appear by dragging and dropping your column headers, view totals on the screen, export & copy & paste to Excel in seconds, AND, with SmartView External -- give your users access to their SmartLists outside of GP.