PEX Prefixes Won't Work!

Hey, on my server, all my permissions are working but my prefixes will not work.
This is my permissions.yml

groups:
Member:
options:
default: true
prefix: '&8[Member]&f'
permissions:
- essentials.build.*
- modifyworld.*
- essentials.pay
- essentials.msg
- essentials.helpop
- essentials.warp
- essentials.warp.list
- essentials.tpa
- essentials.tpahere
- essentials.spawn
Coal:
options:
default: false
prefix: '&0[Coal] '
permissions:
- essentials.build.*
- modifyworld.*
- essentials.pay
- essentials.msg
- essentials.helpop
- essentials.warp
- essentials.warp.list
- essentials.tpa
- essentials.tpahere
- essentials.spawn

schema-version: 1


I use the following plugins:

Essentials (All of them-- INCLUDING Essentials Chat!)
PEX (duh)
WorldEdit

groups:
Member:
options:
default: true
prefix:'&8[Member]&f '
permissions:
- essentials.build.*
- modifyworld.*
- essentials.pay
- essentials.msg
- essentials.helpop
- essentials.warp
- essentials.warp.list
- essentials.tpa
- essentials.tpahere
- essentials.spawn
Coal:
options:
default: false
prefix: '&0[Coal]&f '
permissions:
- essentials.build.*
- modifyworld.*
- essentials.pay
- essentials.msg
- essentials.helpop
- essentials.warp
- essentials.warp.list
- essentials.tpa
- essentials.tpahere
- essentials.spawn

schema-version: 1

that's the updated permissions.yml

You can see the indented version here:

https://pastebin.com/je4etSee

 

I ran into the same problem, apparently you need vault for pex prefixes to work.

 

huh, that's strange. Okay, thanks. did it work for u after you got vault?

 

Eh, don't be scared to get Vault. You need it for so many plugins. It basically helps plugins work together properly (Duch as EssentialdChat and PEX) Its a must have plugin.