Board Thread:Questions and Answers/@comment-77.49.131.204-20160823155114/@comment-24722167-20160825154816

!.03.25 did include new items - it's probably that.

Try removing items.xcr from the game's English folder and then run the editor. (Placing it back when finished with the editor). However, without items.xcr you won't be able to alter the items on your heroes. Infact you might not be able to edit your heroes at all without it.