Exporting 'data with current layout' doesn't work on the Report Server (September 2022) for reports created in the Power BI Desktop (September 2021).
The report you created in the Power BI Desktop (September 2021) ? Did you try exporting 'data with current layout' in the Power BI Desktop (September 2022) ? The Report Server you mentioned is Desktop or Service ?
Best Regards,
Community Support Team _ Ailsa Tao