Could you provide us with a sample packaged workbook (.twbx)? This will help us help you. If the data is confidential, a sample packaged workbook with sample data that mimics the structure of the original workbook is sufficient. Instructions for creating and sending a packaged workbook can be found at the following link:
If the data source is a cube, creating a packaged workbook will not be possible. In this case, please send screenshots illustrating the issue and as much descriptive information as possible.