Misrepresented full backup size

Server: Debian Jessie +btrfs

Client: Windows 10

Here is the result of first full backup of the client and that is the only record that is shown in the backups tab for that client (no incremental done for it) ,

06/13/19 18:24 No 12.61 GB

And here is the du -sh of the client’s folder on the server

  131.6GiB [##########] /190613-1214                                                                                                                                                          
  119.8GiB [######### ] /190612-1146
@   4.0KiB [          ]  current

and ls -alh

drwxr-xr-x 1 urbackup urbackup  92 Jun 13 03:00 190612-1146/
drwxr-xr-x 1 urbackup urbackup  92 Jun 13 18:33 190613-1214/
lrwxrwxrwx 1 urbackup urbackup  60 Jun 13 18:33 current -> /BACKUP/CLIENT/190613-1214/

This does not add up here. How is this possible? My all other clients have all the full backups shown with the correct sizes.

If this is a full backup should not it show with the full backup size? And why does it have 2 snapshots there? Is it a stale one? safe to delete it?

Your full backup probably got interrupted, then resumed, and now it shows the only the size of the resumed full backup.
I guess it should add the sizes of the backup it resumes to the resumed backups…

Thanks, so you think the backup is ok?