Just updated my eisy using "Upgrade Packages." My other node servers are working fine, but MQTT is not. It does not start. When you click on Start, Stop or Restart, it displays a red error message that "Update check failed" and it does not start.
I don't know what that is, but it seems odd that a failed update check would prevent the existing version from starting.
I'm on IOX 5.8.0, PG 3.2.22, and MQTT 0.0.35.