Permissions not allowing some groups their commands..

Hello.
I've been trying to set up my servers permissions, and everything seemed right.. THEN I began to test a little, and found some things I need help with!
1. Those in the group VIP cannot use /setwarp or /tpa, even when it shows they can ( In the permissions YML, but not on the /help ingame..)
2. Those in Regulars can make finite showcases ( shops ) and buy from infinite showcases ( shops ) when it shows they can't.

I've tried the YML checkers on the web, none show any errors. Here is my config.

HELP! Please

users:
porkerthepork:
groups:
- 'Regulars'
andorra101:
groups:
- 'Regulars'
100fizz:
groups:
- 'Administrators'
1000delrith:
groups:
- 'Administrators'

groups:
Default:
permissions:
mchat.prefix.Default: true
mchat.suffix.Default: true
permissions.build: true
Regulars:
permissions:
mchat.prefix.Regulars: true
mchat.suffix.Regulars: true
mchat.prefix.Default: false
mchat.suffix.Default: false
essentials.balance: true
essentials.pay: true
essentials.sell: true
essentials.worth: true
essentials.afk: true
essentials.compass: true
essentials.getpos: true
essentials.help: true
essentials.helpop: true
essentials.ignore: true
essentials.list: true
essentials.me: true
essentials.msg: true
essentials.rules: true
essentials.suicide: true
essentials.back: true
essentials.back.ondeath: true
essentials.delhome: true
essentials.home: true
essentials.sethome: true
essentials.tpaccept: true
essentials.tpdeny: true
essentials.warp: true
factions.kit.fullplayer: true
showcase.buy.finite
inheritance:
- 'Default'
Moderators:
permissions:
mchat.prefix.Moderators: true
mchat.suffix.Moderators: true
mchat.prefix.Regulars: false
mchat.suffix.Regulars: false
inheritance:
- 'Regulars'
Administrators:
permissions:
superpermbridge.*: true
mchat.prefix.Administrators: true
mchat.suffix.Administrators: true
mchat.prefix.Regulars: false
mchat.suffix.Regulars: false
inheritance:
- 'Regulars'
VIP:
permissions:
mchat.prefix.VIP: true
mchat.suffix.VIP: true
mchat.prefix.Regulars: false
mchat.suffix.Regulars: false
essentials.setwarp: true
essentials.tpa: true
showcase.buy.infinite: true
showcase.finite: true
inheritance:
- 'Regulars'
E:
permissions:
mchat.prefix.E: true
mchat.suffix.E: true
mchat.prefix.Regulars: false
mchat.suffix.Regulars: false
inheritance:
- 'Regulars'