Missed this one, but apparantly the Microsoft Exchange Team silently released a small update of the Exchange Mailbox Role Calculator, bringing it to version 14.4.
This version includes the following fixes since 14.2:
- Fixed stretched DAG scenario that had one database copy in each datacenter not reporting results due to new copy validation check
- Fixed secondary datacenter log disk calculations to correctly calculate the formatted disk space
- Fixed Table headers in the Storage Design tab to show disk count / Secondary datacenter
- Fixed two-node stretched DAG scenario that resulted in calculator not reporting results due to new copy validation check