Factorio Forums

Is it intended behavior for items with allow_manual_label_change=false to stack when they don't have the same label? It allows you to set multiple items to the same label, and allows you to stack labeled items with non-labeled items and clear it.

Yes, the label portion of an item doesn't change it's ability to stack. It's simply a label.

If you're looking to make a special item like that you'd probably want to make your own and set the stack size to 1.

Thanks