I have noticed this bug as well. Also see MC-243990. This same issue is described there in more detail. I noticed this when I tried finding a stronghold by following an eye of ender. I dug down where it said, but there was nothing. I looked around for a while until I thought it was suspicious and suspected some kind of bug. Sure enough I flew around in spectator mode and it was nowhere to be seen. This seems to be a bug related to updating a world from 1.17 to 1.18. i.e. it shows up for a world first created before 1.18 which is then updated to 1.18. If you generate a world with the same seed fresh in 1.18, the stronghold will be where it should be. Let me know if you need seed/screenshot info from me to corroborate this.
@Avoma:
I have noticed this bug as well. Also see MC-243990. This same issue is described there in more detail. I noticed this when I tried finding a stronghold by following an eye of ender. I dug down where it said, but there was nothing. I looked around for a while until I thought it was suspicious and suspected some kind of bug. Sure enough I flew around in spectator mode and it was nowhere to be seen. This seems to be a bug related to updating a world from 1.17 to 1.18. i.e. it shows up for a world first created before 1.18 which is then updated to 1.18. If you generate a world with the same seed fresh in 1.18, the stronghold will be where it should be. Let me know if you need seed/screenshot info from me to corroborate this.