mhhh, looks like I could reproduce this issue one time
related debug logs: https://paste.osmc.tv/soyefoxeta
root@osmc-vero4k:/mnt/Intenso2766GB/vero4k_backup# ls -al
total 288380
drwxr-xr-x 2 nobody users 4096 Aug 14 06:00 .
drwxrwxrwx 16 root root 4096 Aug 10 19:42 ..
-rw-r--r-- 1 nobody users 147679830 Aug 11 18:46 OSMCBACKUP_2022_08_11_18_44_52.tar.gz
-rw-r--r-- 1 nobody users 147608078 Aug 13 06:01 OSMCBACKUP_2022_08_13_05_59_52.tar.gz
so, the file OSMCBACKUP_2022_08_14_06_00_06.tar.gz
was not transferred to the target location is still visible in /home/osmc/.kodi/temp
root@osmc-vero4k:/home/osmc/.kodi/temp# ls -al
total 139448
drwxr-xr-x 5 osmc osmc 4096 Aug 14 06:00 .
drwxr-xr-x 8 osmc osmc 4096 May 27 07:14 ..
-rw-r--r-- 1 osmc osmc 140754344 Aug 14 06:01 OSMCBACKUP_2022_08_14_06_00_06.tar.gz
drwxr-xr-x 2 osmc osmc 4096 Aug 13 17:26 archive_cache
-rw-r--r-- 1 osmc osmc 1192380 Aug 14 20:40 kodi.log
-rw-r--r-- 1 osmc osmc 817796 Aug 13 17:26 kodi.old.log
drwxr-xr-x 10 osmc osmc 4096 Jul 15 2021 scrapers
drwxr-xr-x 2 osmc osmc 4096 Dec 27 2020 temp
The issue happened Aug 14 06:01:32
.