When Stacking is set to No, only first item of the stack has its itemid, while the rest has empty itemid.

for example: 1 stack that has 3 item:

1. https://subeta.net/item.php?itemid=3162422824
2. https://subeta.net/item.php?itemid=
3. https://subeta.net/item.php?itemid=

only the first 1 works. second and third open to "Oh No! No itemid specified" error message.