I am creating a pvp arena with pvp kit perms enabled inside the arena.  I also use the trade plugin on my server, so I want to disable trade perms for players when they are inside the zone around the pvp arena.  I have setup two zones.  One zone for the kit perm enable and the second zone for the trade perm disable.  The zones overlap each other.  Below is the ZonePerms config file that I am using.  The pvp kit perm enable is working but the trade perm is not disabling when players enter the arena.   How can I disable trade perms when players enter the zone? 

{
"Enable": true,
"Zones": {
"18711314": {
"EnableZone": false,
"Permissions": [
"trade.use",
"trade.accept"
]
},
"38847963": {
"EnableZone": true,
"Permissions": [
"kit.pvp"
]
}
}
}