Every inbound connection seems to hit Default deny / state violation rule

[ozeruga]

Hi Team
I desperately need your help here.
For some reason I keep getting    Default deny / state violation rule anytime I try connecting using Port Mapping.
I tried putting firewall into permit any-any on WAN interface and same outcome. 

Configuration is the following
Client port 18799 ,
ATT Router NAT / DHCP 192.168.1.70/24 (plugged into WAN port, and it is configured to permit private addresses)
OPNSense 192.168.0.1/24 port forwarding rule 3282, client uses LAN port

Live logs show "Default deny / state violation"
Went through all kind of articles and yes private IPs enabled on WAN links, and rules are configured and yet it keeps failing.
Please see attachment. Huge thank you.