Comment 1 for bug 1967561

From the engine report, the migration-fortress didn't move to stopped.
error: 'must restart: an agent upgrade is available'
  migration-fortress:
    inputs:
    - upgrade-steps-flag
    - upgrade-check-flag
    start-count: 1
    started: "2022-03-30 17:25:44"
    state: stopping
  migration-inactive-flag:
    error: connection is shut down
    inputs:
    - api-caller
    start-count: 2
    state: stopped
  migration-minion:
    error: connection is shut down

    - central-hub
    - http-server-args
    - is-controller-flag
    state: stopped