I believe Backblaze B2 keeps the most recent version of all files, as well as previous versions of files for as long as File Lifecycle specifies. It looks like MSP360 retains multiple copies of files (using a different folder name for each version), and then explicitly deletes older copies of the file from Backblaze when the retention policy expires. MSP360 only deletes them from the primary bucket specified in the backup plan, because it knows nothing about the replica EU bucket. Does that sound correct? Is my only recourse to manually delete older files from the EU bucket, or do you have any other suggestion?