the tabs do not get whitelisted

[Hiradpi]

tab:
  default:
    priority: 0
    commands:
      - "/spawn"
      - "/leave"
      - "/addbounty"
      - "/lobby"

blocked_command_default_actions:
  - "message: &8[&b&lECB&8] &cYou don't have permissions to use that command."
use_commands_as_whitelist: false
commands:
  - "/sad"
  - "/bukkit:?"
  - "/bukkit:ver"
  - "/bukkit:version"
  - "/bukkit:pl"
  - "/bukkit:plugins"
  - "/bukkit:help"
  - "/bukkit:about"
  - "/ver"
  - "/version"
  - "/plugins"
  - "/pl"
  - "/minecraft:me"
  - "/about"
  - "/icanhasbukkit"

the tabs on default (spawn , leave , ...) do not get whitelisted and i have no idea why
paper 1.8 + waterfall also using ecb (tried on that too)

[Ajneb97]

Are those commands registered by another plugin? When you are OP, can you see those commands in the tab completion?