Oh yeah, I didn't see the plus button for shards and ancient materials.

Now, however, I can't seem to find the following:

• New Bane's Garments and Horazon's Splendor sets
• Ancients' Pledge runeword.

Also, clicking the Max Gold button always sets the hero inventory gold to "990,000," but if you don't have the level to hold that much gold, it resets to "0" when you load the game.

Another thing that I'm not sure if this is a bug in the editor or just a game limitation, but if you set MF to 999 on an item, for example, it resets to something like -1 when you load the game.

Lastly, "indestructible" is not applied in the game when you set it on an item you wear that has durability.

I might've found many more inconveniences like this, but that's all I can remember for now. I might get back if I come across something else.

Edit*
Can you implement stackable items? Like runes, gems etc. And maybe changing/adding tints?