@da Matser Cleanup has controls to avoid inadvertent data deletion. If there are any changes in the drive letter assigned to mapped drive, there will be possibility of data deletion despite data available locally under a different drive letter. Hence as a safety precaution, mapped drive is excluded from cleanup operation.
When cleanup operation is initiated, application will compare backupset selection with files present locally and with the online account. For now archive clean up feature will work only for files, it will work for files inside a folder.
We have forwarded your feedback for inclusion of folders during cleanup operation as an enhancement request.
@TheSeb Please forward your observations to support at idrive dot com. Our technical support team will have a look and will contact you with an update.