@jimp Thanks for your reply.
I did search for 'traffic' in both of them and this is the group privileges menu actually. I have reinstalled the package and rebooted after that didn't work.
I have just reinstalled again, just to make sure. But that also didn't work.
The traffic graph privilege is already assigned to this group, so that's probably why it doesn't show up. There's no privileges on the account not inherited from said group.
See here an example of one of the individual accounts under this group.
5c606339-1d6b-45f2-9c36-167c8c7200bb-image.png