List and block Load save file...

Hi,
I've a strange problem with list. I have a list with 10 items in it; if I use this list (with get item block) I have no problem, but if I update this list, and I add a new item (now I have 11 items) and then if I use the block "Load save file..:" in the first scene, this block load the old list with 10 items, and the new items that I have add manually is gone.
Why ?

It's not like number attributes where if you add a new one it's still there even if you load previous data.  Assuming you're trying to update a game and not delete old list values, you can check the lengh of the list and if it's 10, add the new default value in your first scene.

yes rob,
I'm trying to update a game, and I would like to update the list without a use of the block "add.."
So I think the the only solution good for me is to create a new list and use it.

Thank you