Troubleshooting Load Balance

[aspri]

I am testing out OPNsense coming from Mikrotik. On Mtik, failover based on a certain % of packet loss requires scripting which I have not mastered. OPNsense makes this easy.

However LB is not working in that WAN2 is not seeing any traffic. See images LB1 to LB4 for my settings.

I've noticed that in Outbound NAT (image LB4), WAN2 does not have an entry. What setting am I missing.

Thank you.