It's nothing I couldn't fix but it's something which is very strange for a game to create these changes on FRESH the savegame.
For example attributes aren't stored as 'Attributes' instead it's named as 'Attributes2' which is normally in indicator that it couldn't create 'Attribute' because it already exists and then it starts by adding numbers to the end. But there is no 'Attribute'. And that is not the only change in the structure which confuses me and causes the editor to fail.
However, as I'm aware now I've fixed it. Thanks for the savegame, all of them now opens correctly on the new editor.
Thanks for that 0x90, you're the man.
It little quirks of Unity I suspect..lol..
Thanks again.