Expected behavior until 6.10.x version
The node files should be backed up separately. This can be achieved by one of the following options:
1. Modifying the Maintenance Session
2. Using an external backup of the Dollar Universe directories
3. Backing up the instance regularly offline using unibackup (with the "full" option)
All the other subfolders and files present in data and data/XXX subfolders will also be backuped with the command "uxbck uni" if the parameter all is added to the command as stated in the documentation: