Factorio Forums

I have the single blueprint in the inventory with the content, select it and place in the toolbar, right mouse click to open it, press the delete button, reopen the inventory the blueprint is still there but empty and grayed out unable to use it.
If I add multiple blueprints to the inventory and delete them they will be correctly removed, but one will still remain grayed out.
Dropping the blueprints or placing in a chest doesn't solve since still remain the grayed out one.

Hello. The inventory slot has blueprint filter set on it - that's what the grayed out icon is. Middle mouse click it to clear the filter.

Right you are Could you change a little the ui to explain it better that it's a filter? Like instead of showing the information of the item, say that that's a filter

I'll pass the suggestion to responsible people.