MythicMobs Bug [MOBS]

Muerto:
  Type: ZOMBIE
  Display: '&cMuerto'
  Health: 50
  Damage: 5
  Skills:
  - ignite{ticks=100} @target ~onAttack <50% 0.5
  Equipment:
  - CascoMuerto HEAD
  - PetoMuerto CHEST
  - EspadaMuerto HAND
  Drops:
  - LootMuerto
  LevelModifiers:
  - health 5
  - MovementSpeed 0.2
Arquero:
  Type: SKELETON
  Display: '&cArquero'
  Health: 40
  Damage: 3
  Skills:
  - damage{amount=5;ignoreArmor=false} @target ~onTimer:200
  Equipment:
  - CascoArquero HEAD
  - PetoArquero CHEST
  - ArcoArquero HAND
  Drops:
  - LootArquero
  LevelModifiers:
  - damage 0.1