Hi,
I kinda have the same problem, but i used
this repo for displaying a remote image.
In display-weather.sh there is an additional line (after the command you've mentioned) which might help here:
/etc/init.d/wifid start
However, right now this doesn't seem to work at all for me. I also have troubles getting a USBNet connection. It worked for a while tbh. There were some minor issues that i had to fix but it somehow worked for a while. I might do a factory reset, if i break my jailbreak again, i already know how to make Kubrick on Proxmox work to debrick it
Happy hacking!