1:1 NAT to device using WebGUI port

[alltime]

We have a device that needs to be accessible using port 80.  As a result, we renamed the WebGUI port to 8081.
When accessing 192.168.1.6:8081 (PFSense WAN IP), the traffic is routed correctly to the WebGUI.  The problem is that connecting to 192.168.1.6:80, does not forward correctly to the device.

• The device is accessible when connecting to it's local IP, 192.168.3.4.

• There are no firewall rules blocking traffic

I look forward to any help here.

Here are the current Firewall and NAT settings.

Firewall

Control panel settings