Minecraft Username: SirChilledMrHobo @SirChilledMrHobo Brief Description: It seems players can not stock trade signs as easily with a simple right click, when the required items are above 64. Instructions: Create a trade sign that sells a item in quantities bigger then 64 and then try to right click sign with that item and with required amount to stock it. How many times did you recreate this bug?: Multiple times. Result: Cant just right click sign with items to stock it. Expected Result: You should be able to stock the items if you have them all in your inventory, but you cant. Evidence: Don't think is needed as cant really show much.
I think it has always been this way. I think you can only do one stack at a time, not one inventory at a time. An example would be potions. You can only restock potions one at a time because they don't stack. The only exception is when creating the sign; at the time of creation you can do your whole inventory if you wish.
As far as I'm aware, this is intended. It might be able to be changed though. You'd have to ask a dev about that.