You open your inventory, you want to go select your spellbook to look inside of it, so you click it on the sidebar
But because it's apparently gotten a hidden selection or something going on with it, it reads it as you double-clicking it, so instead of you opening the bag/spellbook to peek at what's inside, it moves it to your hands
You open your inventory, you want to go select your spellbook to look inside of it, so you click it on the sidebar
But because it's apparently gotten a hidden selection or something going on with it, it reads it as you double-clicking it, so instead of you opening the bag/spellbook to peek at what's inside, it moves it to your hands