OpenVPN works on default WAN IP only with pfSense 2.3

dogbait

We have 8 static IP addresses. Our pfSense 2.3 install no longer works on anything but the default WAN IP. It used to work using 2.2.

We have OpenVPN Server setup with:

Interface - LAN

NAT Port Forward rule which works is:

Dest Address: WAN_IP:1194
Dest Ports: 1194
NAT IP: 10.0.0.1
NAT Ports: 1194

However anything other than the WAN_IP doesn't work. I've restarted the OpenVPN service after making changes but see the below error when clients attempt to connect to anything other than the WAN interface IP:

Oct 10 15:59:03 gateway openvpn[25949]: CLIENT_IP:29107 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Oct 10 15:59:03 gateway openvpn[25949]: CLIENT_IP:29107 TLS Error: TLS handshake failed

Firewall OpenVPN Rules are:

States Protocol Source Port Destination Port Gateway Queue
IPv4 * * * * * * none