It's simple camfires are supposed to cook food when you click on them with food in your hand, but it doesn't. You can't even place it on the campfire.
UPDATE!
This is only the case when at a naturally generated sandy shore.
Comments 2
Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
Can you please add a screenshot of the setup that is preventing campfires from being used?