Plasma Firewall blocks KDE Connect from connecting and the device being shown in the mobile app

Based on

My outputs:

sudo netstat -tunelp | grep -i kdeconnect
tcp6       0      0 :::1716                 :::*                    LISTEN      1000       25622      1035/kdeconnectd    
udp6       0      0 :::1716                 :::*                                1000       25621      1035/kdeconnec
netcat -z -v 192.168.0.13 1714-1764
latitux.local [192.168.0.13] 1716 (xmsg) open

KDE Connect listens to 1716 and it seems to be open.