Steps to reproduce:

Step 1: Go to a Bundle in your Inventory.

Step 2: Scroll through items in the bundle.

Step 3: Choose an item that's not in the front, and you'll notice that it always chooses the item in front instead of the item you chose.

What happened: Right Clicking on Items after scrolling in Bundle always chooses the Item on the front.

What I expected: Right-Clicking on an item after choosing on the scroll wheel should give you the item you picked.