Export data to Excel not working in Report Server

My colleague and I successfully connected my DB to Analysis Servers and then a PBI Report Server (August version). Everything looks great, but nothing happens when I try to export the data from a visual to Excel.

The settings on the SSRS instance have EnablePowerBIReportExportData set to true, so the problem may not be in our local download of Power BI.

The problem may be in the web application itself because when we turn on the Network capture feature in Developer Tools in the browser and then click Export Data on a grid, we can see a few querydata API requests that succeed followed by a request for a filesaver.min.js script that fails with a 404-Not found error.

This may be a bug that needs a quick fix. What is your assessment?