I tryed to copy a chest that had items in it, with button 3 of the mouse, and I expected to have a chest that has this item, when I placed it. It was the same for me with the command block. Do you have idea why is it happening? I'm pretty sure it's because I'm on Ubuntu.
MC-51362
Block NBT tags copy bug
Resolved
Duplicate
0
This is as usual.
You have to press CTRL and Key 3 to copy the NBT of chests and others.