Short description of the issue:
When hovering over the bundle in the inventory, scrolling on the scroll wheel does nothing.
Steps to reproduce the issue:
Connect a mouse
Get a bundle and fill it with any item
Hover over the bundle and attempt to scroll through it
After scrolling, when attempting to take out any items from the bundle, you will always take out the first item.
Expected result
You should be able to select which items you want to take out of the bundle using the mouse scroll wheel.
Actual result
No scrolling is done on the bundle, even if the scroll wheel works elsewhere inside Minecraft.
I did some further testing and was able to get some more information. The bundle can only be scrolled if the 2 following requirements are met:
The bundle is placed on one of the 3 left-most columns in the inventory/hotbar slot (illustrated in the image on the left as the areas filled with Lime Green Concrete blocks)
If the UIs of certain blocks/entities (shown on the right image) are open