Hi, @Markzolotoy
It seems like you are having issues with your paginated reports. One of the reasons for the error message "Internal error" when opening the report builder could be due to a timeout issue. The error message suggests that the data for the report could not be fetched in the allocated time. Another reason could be due to the use of the React Renderer.
If the report does not render and shows a fatal exception dialog with the text "An unexpected error occurred", then you should disable the React Renderer. If you are publishing the report to a workspace and you receive the error message "Operation returned an invalid status code 'BadRequest'", then the functionality that you are trying to achieve is not supported in the Service for Paginated report.
If you are having issues with the report rendering while selecting 'all' within the filters/parameters that have a large number of values, then you should reduce the number of parameter values and check if the query is too long.
Best Regards,
Community Support Team _Charlotte
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
