Not adequate behavior of the pfsense firewall?

Question

firewall

Hello dear, I created a site to site vpn between two pfsense I will describe briefly, Everything works, but I want to block traffic between two pfsense local networks And for this, I create a firewall on the openvpn virtual interface to block rules for all networks and protocols and I do it on another pfsense too and reload all pfsense s. But all exactly access from one side of the local network works, but from the opposite side, no
Thanks in advance