Bukkit

PLEASE FILL OUT ALL THE INFORMATION BELOW! IF YOU DON'T DON'T EXPECT IT TO GET FIXED!

What steps will reproduce the problem?
1. Warp to 2nd world (Superflat Creative)
2. Add items to inventory
3. Warp back to 1st world (World - Normal)
4. In my case, my inventory has 1 item that I am expecting (an enchanted diamond pick), but the rest of the items are from my creative world and should not be.
5. Log off and then back on again and the normal inventory returns.

What is the expected output? What do you see instead?
When switching worlds I am expecting to see 2 different inventories and not have to log off and then back on again.

Have you tried the latest version of MultiInv from http://build.yu8.me:8080/job/MultiInv3/ (If not please try it to see if it solves your issues)?
Yes I have tried the latest version 3-70 and it's not working.

You can either fill out the information below or use the plugin DebugReport to generate a report:
http://dev.bukkit.org/bukkit-plugins/debugreport/
Download and install, then wait for the error to occur. Once it has do the command /multiinv report to generate a complete report.
The report file will be in the DebugReport folder.

What version of the product are you using (if you say "latest" you will NOT be helped)?
3-70

Do you have an error log of what happened?
I do not get any errors in my server logs.

What are your world folder names (with proper capitalization)?
Superflat
world
world_nether
world_the_end

What is the contents of your config.yml and groups.yml?

CONFIG.YML
useSQL: false
splitHealth: true
splitHunger: true
controlGamemode: true
separateGamemodeInventories: true
creativeGroups:
- creative
sql:
  host: localhost
  port: '3306'
  username: username
  password: password
  database: database
  prefix: multiinv_
SaveInventoryOnQuit: false
compatibilityMode: false
xpfix: false

GROUPS.YML
exampleGroup:
- world
- world_nether
- world_the_end
Superflat:
- Superflat

What is the entire list of plugins on your server (doing /plugins on the console and pasting the output is a quick method to do this)?
dynmap, DelzTools, WorldEdit, Essentials, EssentialsChat, PermissionsEx, TuxTwoLib, mcMMO, Vault, Multiverse-Core, Knapsack, Citizens, Denizen, MultiInv, Adventures, Multiverse-SignPortals, Alchemist, CraftBook, KillRewards, Multiverse-Portals, Sentry, Blacksmith, Builder

Please provide any additional information below.