So yeah yesterday new DLC arrived for Borderlands 2 with an update that you couldn't use the save editor after it and since then been waiting for the editor to be updated and well it seems Rick got straight to it, Credit goes to the one and only Rick :)
Bug fixes and updates to game info (“Ultimate Vault Hunter Upgrade Pack” DLC) for the current Borderlands 2 patch (1.4.0).
Corrected (more) problems with handling of expansion data in packed item data.
Eridium in-editor will show up to 99, the rest is stored in a new value that’s not handled yet.
Expansion playthrough number and playthrough completions are also stored in a new value that’s not handled.
If you wish to keep an eye on his stuff: http://blog.gib.me/