Factorio Forums

Just noticed this. If you remove a blueprint from a book, the book loses its detail icon and, when open, no longer has a delete button. Any blueprints still in the book function as normal.

Can not reproduce. Show the separate steps with screenshots please.

I was moving blueprints around too much yesterday apparently, and thought I had the steps isolated. Tried to recreate today, realized I was trying to delete a book from a chest. It will not let me delete a book from a chest, empty or not, unrelated to removing a blueprint. I don't know if this is working as intended, but I can delete them if I move them to my inventory. I cannot delete them if I move them to a chest. New, old, empty, not empty, the delete button is not available from a chest.

Thanks for the report. This is however a limitation of how we do "opened item" GUI logic. The game doesn't know where the blueprint/blueprint book actually exists so when you click the delete button it goes over your entire inventory to find the item to delete it.

In the case of you having it opened while it's not in your inventory the game doesn't know where it exists in the world so it doesn't know where to look to delete it and so we don't show the button in the GUI (since it wouldn't work anyway).