Local account lockout policy - FortiGateRugged 60F 7.4.2

Hello,
I am trying to implement unsuccessful login attempts policy for local users.
So if the user puts 5 times wrong password then he will be locked for some time.
There are two local admin accounts.

I have setup this, but the problem is that it will lockout whole firewall for login and not only user

config system global
    set admin-lockout-duration 300
    set admin-lockout-threshold 10
end

So I have tried this setting, but it seems that it is not triggered. Is this setting even relevant for local administrators ?

config user setting
    set auth-lockout-threshold 5
    set auth-lockout-duration 900
end

Thank you
BR.
D