Dashboard Widget - Works in Preview, but not in Prod

Hello All, hope everyone is doing well.

I have a Dashboard widget based on a Report that shows the correct formatted data in the preview, but once published shows the unhappy error of 'The source data for this chart has been changed". I am "Admin" of the Dashboard, the Report, and the backend sheet the data is sourced from.

I have included screenshots below and can provide additional data or screenshots upon request. Appreciate the help in advanced! :-)

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