Comment 1 for bug 1707811

Hi,
What is your xtrabackup version?

I use the same PS 5.7.18 with ordinary master/slave setup + PXB 2.4.8 and everything looks OK.

xtrabackup --defaults-file=/home/shahriyar.rzaev/sandboxes/rsandbox_Percona-Server-5_7_18/master/my.sandbox.cnf --user=msandbox --password='msandbox' --target-dir=/home/shahriyar.rzaev/backup_dir/ps_5.7_master/full/2017-08-01_07-17-15 --backup --host=127.0.0.1 --port=20393 --encrypt=AES256 --encrypt-key='VVTBwgM4UhwkTTV98fhuj+D1zyWoA89K' --encrypt-threads=4 --encrypt-chunk-size=65536 --check-privileges --no-version-check --parallel=8 --throttle=1000 --history --stream="xbstream" > /home/shahriyar.rzaev/backup_dir/ps_5.7_master/full/2017-08-01_07-17-15/full_backup.stream

master [localhost] {root} (PERCONA_SCHEMA) > show tables;
+--------------------------+
| Tables_in_PERCONA_SCHEMA |
+--------------------------+
| xtrabackup_history |
+--------------------------+
1 row in set (0.00 sec)

> select * from xtrabackup_history\G
*************************** 1. row ***************************
            uuid: 830b4057-7689-11e7-ac73-002590e9b448
            name: NULL
       tool_name: xtrabackup
    tool_command: --defaults-file=/home/shahriyar.rzaev/sandboxes/rsandbox_Percona-Server-5_7_18/master/my.sandbox.cnf --user=msandbox --password=... --target-dir=/home/shahriyar.rzaev/backup_dir/ps_5.7_master/full/2017-08-01_07-17-15 --backup --host=127.0.0.1 --port=20393 --encrypt=AES256 --encrypt-key=... --encrypt-threads=4 --encrypt-chunk-size=65536 --check-privileges --no-version-check --parallel=8 --throttle=1000 --history --stream=xbstream
    tool_version: 2.4.7
ibbackup_version: 2.4.7
  server_version: 5.7.18-15-log
      start_time: 2017-08-01 07:17:15
        end_time: 2017-08-01 07:17:43
       lock_time: 0
      binlog_pos: filename 'mysql-bin.000005', position '154', GTID of the last change '00020393-1111-1111-1111-111111111111:1-1511'
 innodb_from_lsn: 0
   innodb_to_lsn: 2892770773
         partial: N
     incremental: N
          format: xbstream
         compact: N
      compressed: N
       encrypted: Y
1 row in set (0.00 sec)

RESULT: could not reproduce. Marking as invalid for now.

As a general rule, I am not suggesting to use innobackupex because it is already deprecated and it is going to be removed in future releases. Please use xtrabackup instead.
As described here:
https://www.percona.com/doc/percona-xtrabackup/LATEST/manual.html