needo, i've installed your docker for sabnzbd.
can you confirm a "bug" with the port setting? If you change the port from anything other than 8080 the alternative port isn't written to the sabnzbd.ini, the port is always written to the ini as port 8080.
I've stopped the docker, manually edited the ini to port 8085 and restarted the docker, the port is written back to the ini as 8080.
If you edit the docker port setting from the webui, while the docker is running, and apply the new port, port 8080 is still written to the ini regardless of what port you've set in the webui.