When I have several summoned items stacked on my cursor and I destroy the first one. The graphic of that item remains and does not cycle to the next item unless I drop the item into a slot first. Be careful folks... =)
Weird more people aren't noticing this as it's still an issue. Sit in the lobby, have people cast 1000 mod rods on you, start destroying them and watch how the icon doesn't change but the items you're destroying are all different. Haven't tested any real items one might have on their cursor but deleted some summoned apples from Mage cauldron as the bottom of my pile after deleting a mod rod on top of it and the icon not changing. Maybe moot when most people turn off the new UI after this upcoming patch but unless it's fixed the issue will still be around when the new UI comes back in full.
