• This happens when servers aren't properly getting UUIDs from BungeeCord. Make sure bungeecord: true is set in all server's spigot.yml! You'll have to update player servers that have already been created. Also make sure BungeeCord's ip_forward option in config.yml is true. The spigot.yml in the default template already has bungeecord set to true.
  • See the BungeeCord Setup Instructions!