Jitsi-meet quick install on ubuntu 18.04.4 LTS , nginx, no vhost created, no apparant errors

Hi Folks,
after a flawless installation on one server I tried on a second, pretty much identical machine a few days later and find no server file created in /etc/nginx/sites-available after running apt-get install jitsi-meet -y as root.

As far as I can see there were no errors in the package installation, other vhosts on nginx are still working fine ( the first server also had similar vhosts ).

I have tried an uninstall then reinstall to no avail.

where do I start looking?

many thanks,