'Click To Block' doesn't actually block?

I just installed GlassWire. In the Firewall panel, I notice that you can block certain processes by clicking on them and enabling the little flame icon. I’m assuming when the flame is Red, it will block incoming/outgoing traffic. However, I’m noticing that traffic continues regardless of whether the flame has been clicked.

How do I block all traffic on a given process? And can I create custom rules to remember my choices?

@davidbk

Do you have a third party software that has disabled the Windows Firewall? We use the Windows Firewall API.