When performing the check for proper backup, some files can be omitted from the generated report. In particular if the list of files is long, it may be wise to avoid displaying all the files which are correctly backed up and instead focus on files that do require attention.
Click on the settings button. Upon your click, a new window opens with several options regrouped by tabs.
Among the the tabs, select the "display" and check or uncheck the option to display files which are identical between the reference and the backup.