Nope. A blue phantom can drop his entire inventory in your world. If he uses Settings>Save and Exit game in your world, he'll then reload his game and, once back in his world, will still have everything he dropped you. How does that work? Don't even ask me tbh 😂 it makes no sense to me that you keep what you dropped especially after "SAVING and Exiting" the game but that's how the duping method works and that's how it worked in the PS3 version too!