Acronis Backup 12.5: Some of the backed up files missing when browsing the Catalog manually

Symptoms

• You back up a disk with a large number of files to a location with enabled Catalog.
• When browsing folders of the backed up disk in the Catalog you are unable to see a backed up file.
• When browsing the backup under the Backups tab, the backed up file is there

Example: file 0a is visible in Backups, but not shown in the Catalog