Jellyfin community container setup

[Anvil5465]

For some reason, when I setup the Jellyfin community container and go to http://internal.ip.address:8096, it asks for a username and password as if these have already been setup, rather than taking me through the setup process to create a username and password. Is this normal behavior? If so, what is the default username and password?

If relevant, I was previously using jellyfin as a separate docker container using this command. I stopped and removed this container before enabling the nextcloud-aio community container. Is it possible that conflicts could have caused an issue for me?:

sudo docker run -d
--name=jellyfin
--volume /srv/jellyfin/config:/config
--volume /srv/jellyfin/cache:/cache
--volume /media:/media
--user 1001:1001
--group-add="109"
--net=host
--restart=unless-stopped
--device /dev/dri/renderD128:/dev/dri/renderD128
jellyfin/jellyfin:latest