Upgrading to Juniper fails with 'User matching query does not exist'

Ok. Then run:

docker-compose -f /home/ubuntu/.local/share/tutor/env/local/docker-compose.yml -f /home/ubuntu/.local/share/tutor/env/local/docker-compose.prod.yml --project-name tutor_local exec mongodb mongo --eval 'db.adminCommand({ setFeatureCompatibilityVersion: "3.6" })'

Then the upgrade will be done.