HOLA!, tengo un problema con el plugin pex, al ponerle el nombre con colores, en el juego me aparece en blanco, que puedo hacer?

groups:
Usuario:
options:
build: 'true'
prefix: ("&0(&8M&7ember&0)&7 "
default: 'true'
inheritacnce:
permissions:
- essentials.spawn
- modifyworld.*
- essentials.rules
- essentials.help
- essentials.afk
- essentials.msg
- essentials.warp.list
- essentials.warp
- essentials.spawn
- essentials.home
- essentials.tpaccept
- essentials.sethome
- essentials.tpadeny
- essentials.kits.Usuario
- essentials.kit
- essentials.msg
Donator:
options:
build: 'true'
prefix: '&b[Donator] &r'
inheritance:
- Member
permissions:
- worldedit.*
- essentials.back.ondeath
- essentials.sethome
- essentials.sethome.multiple.vip
- essentials.tpa
- essentials.back
- essentials.kits.donator
- essentials.repair
Premium:
options:
build: 'true'
prefix: '&1[Premium] &r'
inheritance:
- Donator
permissions:
- worldedit.*
- essentials.sethome
- essentials.sethome.multiple.unlimited
- essentials.repair
- essentials.heal
- essentials.kits.premium
Moderator:
options:
build: 'true'
prefix: '&2[Mod] &r'
inheritance:
- Member
permissions:
- worldedit.*
- essentials.back.ondeath
- essentials.sethome
- essentials.sethome.multiple.unlimited
- essentials.enchantments
- essentials.back
- essentials.tempban
- essentials.tp
- essentials.heal
- essentials.feed
- essentials.ban.notify
- essentials.banip
- essentials.clearinventory
- essentials.eco.loan
- essentials.ext
- essentials.getpos
- essentials.helpop.recieve
- essentials.jails
- essentials.jump
- essentials.kick
- essentials.kick.notify
- essentials.mute
- essentials.realname
- essentials.signs.create.*
- essentials.signs.break.*
- essentials.time
- essentials.protect.alerts
- essentials.protect.admin
- essentials.protect.ownerinfo
- essentials.togglejail
- essentials.top
- essentials.unban
- essentials.unbanip
- essentials.whois
- essentials.world
- essentials.tpa
Admin:
options:
build: true
prefix: '&4[Admin] &r'
inheritance:
- Moderator
permissions:
- essentials.invsee
- essentials.enchant
- worldedit.*
- essentials.ban
- essentials.god
Owner:
options:
build: 'true'
prefix: '&0[Owner] &r'
inheritance:
- Admin
permissions:
- worldedit.*
- '*'
Prueba: {}
YT:
options:
prefix: '&7&k[&fYou&cTuber&7&k]'
schema-version: 1
users:
8df2ffaa-23e2-3393-bd21-aaf7c1033f86:
group:
- Builder