BattleKits: Players allowed to receive kits more than once per life and can change kits mid fight

I have the once per life option enabled in the BK Global Config but for some reason players can still change their kits more than once per life and can even change them mid fight. Here's my global config and permissions (I use Essentials GroupManager btw)
Global BK Config:
brand: BattleKits
server:
enabled: false
port: 25588
server-name: ClassicKits
server-description: A good old school Kit PvP server!
settings:
once-per-life: true
auto-update: true
enable-restrictions: false
show-kit-info-on-respawn: false
override-disable-respawn-kits: true
instant-soup-drink: true
clear-default: false
instant-soup-drink: true
replenish-type: hunger
signs:
enabled: true
ignore-permissions: false
ignore-costs: false
ignore-world-restriction: false
ignore-lives-restriction: false
soupFillCost: 2.0
indirect:
ignore-costs: true
ignore-permissions: true
ignore-world-restriction: false
ignore-lives-restriction: false
killStreaks:
enabled: true
actionDefault: '!&7 has a kill streak of &e&c!'
rewards:
killCommands:

• xp 1L

Permissions in GroupManager:
groups:
Player:
default: true
permissions:
- essentials.msg
- essentials.r
- essentials.spawn
- essentials.warp
- essentials.mail
- essentials.suicide
- battlekits.use.pvp
- battlekits.listkits
- battlekits.use.archer
- battlekits.use.pyro
- IH.IH
inheritance: []
info:
prefix: ''
build: true
suffix: ''
Owner:
default: false
permissions:
- ''
- essentials.
- worldedit.*
- worldguard.*
inheritance:
- Player
info:
prefix: '&4'
build: true
suffix: ''
Thanks in advance. I can't find a solution to this problem at all. I've tried negating some of the options in the global config but no matter what I do players can still change their kits (afaik) infinitely. I've posted this on BattleKit's GitHub help page but its very unresponsive and I know there are people here that will respond quicker and help me find a solution.

Bump....

EDIT by Moderator: merged posts, please use the edit button instead of double posting.