[Observium] Unix agent not working on non-default port

We have several devices behind a NAT that require using an agent_port other than 36602. Even though I have changed the port in the GUI, the poller seems to continue using the standard port.

It seems to me that $device['attribs']['agent_port'] has not been populated.

Running 24.9.13634 Pro on debian 12.

Thank you. Ricardo Puig