Holding down right click while an item is in your cursor while hovering over an item slot with the same item causes the item in the slot to visually disappear

When you hold right click and while having an item in your cursor, then move around it over the same item without letting go, the item will visually disappear. It will come back after you let go though.

Steps to reproduce

1. Get two separate stacks of the same item in your inventory

2. Click one of them to hold them

3. Start holding right-click while hovering over the other stack
   -> ❌ The other stack visually disappears until you either let go of right click or hover over a different slot.