Backup fails - corrupt JSONL file despite no file being present

[asgothian]

Describe the bug
The iobroker backup fails with an error message since updating to NodeJS 24.20.0 and iobroker.backitup 4.0.3

To Reproduce
Steps to reproduce the behavior:

1. start a backup
2. wait

Expected behavior
obtain a backup of ioBroker base settings

Screenshots & Logfiles
If applicable, add screenshots and logfiles to help explain your problem.

backup.0 2026-09-11 20:20:31.088	error	[iobroker/clean] Backup files not deleted from /opt/iobroker/backups because some errors.
backitup.0 2026-09-11 20:20:16.259	error	[iobroker/ftp] File "/opt/iobroker/backups/iobroker_2026_09_11-20_20_04_backupiobroker.tar.gz" not found
backitup.0 2026-09-11 20:20:07.846	error	[iobroker/iobroker] host.raspberrypi Backup not created: The "objects.jsonl" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)
backitup.0 2026-09-11 20:18:49.859	error	[iobroker/clean] Backup files not deleted from /opt/iobroker/backups because some errors.
backitup.0 2026-09-11 20:18:40.632	error	[iobroker/ftp] File "/opt/iobroker/backups/iobroker_2026_09_11-20_18_28_backupiobroker.tar.gz" not found
backitup.0 2026-09-11 20:18:31.684	error	[iobroker/iobroker] host.raspberrypi Backup not created: The "objects.jsonl" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)

Note - there is no respective file - the iobroker is using redis for objects and stateside:

stormy@stormbroker:/opt/iobroker/iobroker-data $ ls -al
total 84
drwxrwxr-x+ 15 iobroker iobroker 4096 Sep 11 20:19 .
drwxrwxr-x+  6 iobroker iobroker 4096 Sep 11 19:35 ..
drwxrwxr-x+  2 iobroker iobroker 4096 Jan 25  2025 backitup
drwxrwxr-x+  2 iobroker iobroker 4096 Jan 25  2025 backup-objects
drwxrwxr-x+  4 iobroker iobroker 4096 Jan 25  2025 files
drwxrwxr-x+  2 iobroker iobroker 4096 Sep 10 20:48 icloud.0
-rw-rwxr--+  1 iobroker iobroker 3674 Jan 25  2025 iobroker.json
-rw-rwxr--+  1 iobroker iobroker 7479 Jan 25  2025 iobroker.json.bak
drwxrwxr-x+  2 iobroker iobroker 4096 Dec  4  2025 matter.0
drwxrwxr-x+  5 iobroker iobroker 4096 Feb  1  2025 node-red
-rw-rwxr--+  1 iobroker iobroker 8984 Sep 11 20:11 notifications.json
drwxrwxr-x+  2 stormy   stormy   4096 Sep 11 20:19 removed_jsonl
drwxrwxr-x+  2 iobroker iobroker 4096 Sep 11 20:12 yahka.0.hapdata
drwxrwxr-x+  6 iobroker iobroker 4096 Sep 11 20:27 zigbee_0
drwxrwxr-x+  2 iobroker iobroker 4096 Sep 25  2025 zigbee_1
drwxrwxr-x+  2 iobroker iobroker 4096 Jul 26 11:10 zigbee_10
drwxrwxr-x+  2 iobroker iobroker 4096 Feb  7  2025 zigbee_6
drwxrwxr-x+  2 iobroker iobroker 4096 Mar 24  2025 zigbee_8

[{"1789150804672":"[DEBUG] [iobroker] host.raspberrypi 11162 objects saved
[DEBUG] [iobroker] host.raspberrypi 9173 states saved
[DEBUG] [iobroker] host.raspberrypi Validating backup ...
[DEBUG] [iobroker] host.raspberrypi \"config.json\" is valid\nhost.raspberrypi \"objects.jsonl\" exists\nhost.raspberrypi \"states.jsonl\" exists
[ERROR] [iobroker] host.raspberrypi Backup not created: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)\n
[DEBUG] [iobroker] Cannot create backup: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)
[DEBUG] [iobroker] done
[DEBUG] [redis] Start Redis Backup ...
[DEBUG] [redis] Created redistmp directory
[DEBUG] [redis] detected redis file: dump.rdb | file type: rdb
[DEBUG] [redis] Backup created: /opt/iobroker/backups/redis_2026_09_11-20_20_09_backupiobroker.tar.gz
[DEBUG] [redis] Try deleting the redis tmp directory: \"/opt/iobroker/backups/redistmp\"
[DEBUG] [redis] redis tmp directory \"/opt/iobroker/backups/redistmp\" successfully deleted
[DEBUG] [redis] done
[DEBUG] [zigbee] Found zigbee databases: zigbee.0, zigbee.10
[DEBUG] [zigbee] done
[DEBUG] [yahka] found yahka database: yahka.0
[DEBUG] [yahka] done
[DEBUG] [ftp] FTP connected.
[DEBUG] [ftp] Send iobroker_2026_09_11-20_20_04_backupiobroker.tar.gz
[ERROR] [ftp] File \"/opt/iobroker/backups/iobroker_2026_09_11-20_20_04_backupiobroker.tar.gz\" not found
[DEBUG] [ftp] Send redis_2026_09_11-20_20_09_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.0_2026_09_11-20_20_14_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.10_2026_09_11-20_20_14_backupiobroker.tar.gz
[DEBUG] [ftp] Send yahka.0_2026_09_11-20_20_15_backupiobroker.tar.gz
[DEBUG] [ftp] done
[ERROR] [clean] Backup files not deleted from /opt/iobroker/backups because some errors.
[DEBUG] [clean] done
[DEBUG] [historyHTML] new history html values created
[DEBUG] [historyHTML] done
[DEBUG] [historyJSON] new history json values created
[DEBUG] [historyJSON] done
[DEBUG] [notification] Admin notification will be sent
[DEBUG] [notification] done\n"},{"1789150708470":"[DEBUG] [iobroker] host.raspberrypi 11162 objects saved
[DEBUG] [iobroker] host.raspberrypi 9173 states saved
[DEBUG] [iobroker] host.raspberrypi Validating backup ...
[DEBUG] [iobroker] host.raspberrypi \"config.json\" is valid\nhost.raspberrypi \"objects.jsonl\" exists
[DEBUG] [iobroker] host.raspberrypi \"states.jsonl\" exists
[ERROR] [iobroker] host.raspberrypi Backup not created: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)\n
[DEBUG] [iobroker] Cannot create backup: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)
[DEBUG] [iobroker] done
[DEBUG] [redis] Start Redis Backup ...
[DEBUG] [redis] Created redistmp directory
[DEBUG] [redis] detected redis file: dump.rdb | file type: rdb
[DEBUG] [redis] Backup created: /opt/iobroker/backups/redis_2026_09_11-20_18_33_backupiobroker.tar.gz
[DEBUG] [redis] Try deleting the redis tmp directory: \"/opt/iobroker/backups/redistmp\"
[DEBUG] [redis] redis tmp directory \"/opt/iobroker/backups/redistmp\" successfully deleted
[DEBUG] [redis] done
[DEBUG] [zigbee] Found zigbee databases: zigbee.0, zigbee.10
[DEBUG] [zigbee] done
[DEBUG] [yahka] found yahka database: yahka.0
[DEBUG] [yahka] done
[DEBUG] [ftp] FTP connected.
[DEBUG] [ftp] Send iobroker_2026_09_11-20_18_28_backupiobroker.tar.gz
[ERROR] [ftp] File \"/opt/iobroker/backups/iobroker_2026_09_11-20_18_28_backupiobroker.tar.gz\" not found
[DEBUG] [ftp] Send redis_2026_09_11-20_18_33_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.0_2026_09_11-20_18_38_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.10_2026_09_11-20_18_38_backupiobroker.tar.gz
[DEBUG] [ftp] Send yahka.0_2026_09_11-20_18_39_backupiobroker.tar.gz
[DEBUG] [ftp] done
[ERROR] [clean] Backup files not deleted from /opt/iobroker/backups because some errors.
[DEBUG] [clean] done
[DEBUG] [historyHTML] new history html values created
[DEBUG] [historyHTML] done
[DEBUG] [historyJSON] new history json values created
[DEBUG] [historyJSON] done
[DEBUG] [notification] Admin notification will be sent
[DEBUG] [notification] done\n"},{"1789148219444":"[DEBUG] [iobroker] host.raspberrypi 11162 objects saved
[DEBUG] [iobroker] host.raspberrypi 9146 states saved\nhost.raspberrypi Validating backup ...\nhost.raspberrypi \"config.json\" is valid\nhost.raspberrypi \"objects.jsonl\" exists\nhost.raspberrypi \"states.jsonl\" exists
[ERROR] [iobroker] host.raspberrypi Backup not created: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)\n
[DEBUG] [iobroker] Cannot create backup: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)
[DEBUG] [iobroker] done
[DEBUG] [redis] Start Redis Backup ...
[DEBUG] [redis] Created redistmp directory
[DEBUG] [redis] detected redis file: dump.rdb | file type: rdb
[DEBUG] [redis] Backup created: /opt/iobroker/backups/redis_2026_09_11-19_37_04_backupiobroker.tar.gz
[DEBUG] [redis] Try deleting the redis tmp directory: \"/opt/iobroker/backups/redistmp\"
[DEBUG] [redis] redis tmp directory \"/opt/iobroker/backups/redistmp\" successfully deleted
[DEBUG] [redis] done
[DEBUG] [zigbee] Found zigbee databases: zigbee.0, zigbee.10
[DEBUG] [zigbee] done
[DEBUG] [yahka] found yahka database: yahka.0
[DEBUG] [yahka] done
[DEBUG] [ftp] FTP connected.
[DEBUG] [ftp] Send iobroker_2026_09_11-19_36_59_backupiobroker.tar.gz
[ERROR] [ftp] File \"/opt/iobroker/backups/iobroker_2026_09_11-19_36_59_backupiobroker.tar.gz\" not found
[DEBUG] [ftp] Send redis_2026_09_11-19_37_04_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.0_2026_09_11-19_37_09_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.10_2026_09_11-19_37_09_backupiobroker.tar.gz
[DEBUG] [ftp] Send yahka.0_2026_09_11-19_37_10_backupiobroker.tar.gz
[DEBUG] [ftp] done
[ERROR] [clean] Backup files not deleted from /opt/iobroker/backups because some errors.
[DEBUG] [clean] done
[DEBUG] [historyHTML] new history html values created
[DEBUG] [historyHTML] done
[DEBUG] [historyJSON] new history json values created
[DEBUG] [historyJSON] done
[DEBUG] [notification] Admin notification will be sent
[DEBUG] [notification] done\n"},{"1789084810018":"[DEBUG] [iobroker] host.raspberrypi 11162 objects saved
[DEBUG] [iobroker] host.raspberrypi 9168 states saved
[DEBUG] [iobroker] host.raspberrypi Validating backup ...
[DEBUG] [iobroker] host.raspberrypi \"config.json\" is valid
[DEBUG] [iobroker] host.raspberrypi \"objects.jsonl\" exists
[DEBUG] [iobroker] host.raspberrypi \"states.jsonl\" exists
[ERROR] [iobroker] host.raspberrypi Backup not created: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)\n
[DEBUG] [iobroker] Cannot create backup: The \"objects.jsonl\" file is corrupted: Unterminated string in JSON at position 32144 (line 1 column 32145)
[DEBUG] [iobroker] done
[DEBUG] [redis] Start Redis Backup ...
[DEBUG] [redis] Created redistmp directory
[DEBUG] [redis] detected redis file: dump.rdb | file type: rdb
[DEBUG] [redis] Backup created: /opt/iobroker/backups/redis_2026_09_11-02_00_15_backupiobroker.tar.gz
[DEBUG] [redis] Try deleting the redis tmp directory: \"/opt/iobroker/backups/redistmp\"
[DEBUG] [redis] redis tmp directory \"/opt/iobroker/backups/redistmp\" successfully deleted
[DEBUG] [redis] done
[DEBUG] [zigbee] Found zigbee databases: zigbee.0, zigbee.10
[DEBUG] [zigbee] done
[DEBUG] [yahka] found yahka database: yahka.0
[DEBUG] [yahka] done
[DEBUG] [ftp] FTP connected.
[DEBUG] [ftp] Send iobroker_2026_09_11-02_00_10_backupiobroker.tar.gz
[ERROR] [ftp] File \"/opt/iobroker/backups/iobroker_2026_09_11-02_00_10_backupiobroker.tar.gz\" not found
[DEBUG] [ftp] Send redis_2026_09_11-02_00_15_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.0_2026_09_11-02_00_19_backupiobroker.tar.gz
[DEBUG] [ftp] Send zigbee.10_2026_09_11-02_00_19_backupiobroker.tar.gz
[DEBUG] [ftp] Send yahka.0_2026_09_11-02_00_20_backupiobroker.tar.gz
[DEBUG] [ftp] delete /ioBrokerBackup/redis_2026_08_21-02_00_15_backupiobroker.tar.gz
[DEBUG] [ftp] delete /ioBrokerBackup/zigbee.0_2026_08_21-02_00_20_backupiobroker.tar.gz
[DEBUG] [ftp] delete /ioBrokerBackup/zigbee.10_2026_08_21-02_00_20_backupiobroker.tar.gz
[DEBUG] [ftp] delete /ioBrokerBackup/yahka.0_2026_08_21-02_00_21_backupiobroker.tar.gz
[DEBUG] [ftp] done
[ERROR] [clean] Backup files not deleted from /opt/iobroker/backups because some errors.
[DEBUG] [clean] done
[DEBUG] [historyHTML] new history html values created
[DEBUG] [historyHTML] done
[DEBUG] [historyJSON] new history json values created
[DEBUG] [historyJSON] done
[DEBUG] [notification] Admin notification will be sent
[DEBUG] [notification] done\n"}]

Versions:

• Adapter version: 4.0.3
• JS-Controller version: 7.2.2
• Node version: 24.20.0
• Operating system: Debinan 12 (RaspBerry Pi)

Additional context
Add any other context about the problem here.

[github-actions]

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