Bukkit

Disclamer : Sorry for my english, it's not my native language.

What steps will reproduce the problem?
TO MAKE ITEMS VANISH
1. Create a SellShop (not tested with others)
2. Try to add items to the "chest" created in the showcase block, it looks like it's added
3. Close and reopen the chest, items you've just added have disappeared

TO DUPLICATE ITEMS
1. Create a SellShop (not tested with others)
2. Try to remove items from the "chest" created in the showcase block, it looks like you've removed it
3. Close and reopen the chest, itemps you've just removed are back in the show, and they are also in your inventory

What is the expected output? What do you see instead?
It's expected to see items put in the shop, or removed from it.

Items duplicate/vanish.

What SCS version are you using? We don't accept "latest"!
2.9 (lastest, lol)

Do you have an error log of what happened?
No error in the console/in the plugin folder.

Please provide any additional information below
-

Please add the file which you can create with "/scs report" (since b135)

You are using b678. Please try again with a more recent version: http://dev.bukkit.org/bukkit-plugins/scs/files/
I am going to upload a new version today, so you might want to wait until that has been approved.

It has been solved by updating to the new version :D Thank you !