The bug

When attempting to craft a firework rocket using the recipe book, the flight duration is not shown in the tooltip displayed while hovering over the item in the recipe book. Upon clicking without the necessary items, the fireworks displayed in the output also do not have flight duration information.

This is inconsistent with the actual item in the output slot when being crafted, which displays Flight Duration: 1.

How to reproduce

1. Place down a crafting table
2. Obtain gunpowder and paper
3. Open the crafting table and open the recipe book
4. Find the recipe for a firework rocket, and hover over it. Notice how it does not show any information about its flight duration in its tooltip.
5. Click the recipe icon. Notice how the item that appears in the output slot of the crafting table displays Flight Duration: 1 in the tooltip.

Note

Relates to MC-194390.

Video: MojiraFRocket.mp4