damians,

What is your requirement, and what changes have you done to this workbook exactly? As I change the names in Sheet2, the data is only correctly updating for the top left group. Can you post the original link from where you got this file, and mention exactly what you want to achieve. That will give developers here a better idea of how to help you out. Without context, it will not be easy to tell what are the features and what needs to be modified to help you achieve what you are looking for.