If I want to craft an item, I usually have to click once on the left mouse button. But with me I have to hold it down. So I can't use the shift key to take something faster. I always have to hold down and drag a bit to my inventory. I wish from you that you fixxt the bug because it is impossible to still play Minecraft happily. I hope they fix it because you really can't play minecraft well.
jumpingw0lf
Looks like you are using modded servers