So i am trying to beat Minecraft fully no cheats in 1.17 but I gave up as could not find any end ships i even teleported to places above 10k on the x-axis and 100k on the z-axis. What has happened could it be an issue with my world is is this a 1.17 bug. This is so annoying for people who want to beat the game by getting every advancement and because of this it is not possible.
What's the world seed? Did you enable structures when generating the world?