Technical Tip: Web rating override does not work after upgrade to 6.2.5/6.4.2

Description
This article explains the changes made around the Web Filter override starting FortiOS 6.2.5 and 6.4.2.

Scope

Solution
In the GUI, an Allow action of a local/remote category when editing a web filter profile is effectively a shortcut to disable the local/remote category overrides.
The URLs subject to rating overrides will now only take effect if the local category action is set to ‘Monitor’.

For example: In case the site www.google.com is overwritten to 'Business' Category, set action 'Monitor' to the 'Business' Category instead of 'Allow'.

From CLI:

# config webfilter profile
    edit <web filter profile>
        config ftgd-wf
        config filters
            edit <>
                set category <custom category>
                set action monitor
            next
        next
        end
    next
end

Reference: https://docs.fortinet.com/document/fortigate/6.4.2/fortios-release-notes/230510/changes-in-default-behavior - Search for '630433'.