Dashboard Embed onto SharePoint suddenly stopped working

I have access to the Calendar app in smartsheet, which populates off of information from a report. That calendar app is then published to a dashboard, and then the dashboard is published to a sharepoint site via embed widget. This has been working great for months. All of the sudden, when I go to view the smartsheet calendars embedded onto my sharepoint site, I get an error saying "calendar.smartsheet.com redirected you too many times." I also have sheets from smartsheet that are embedded onto my sharepoint and still fully functional, just no idea why the calendar/dashboard stopped working.

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