If the player is being followed by a creaking spawned from a creaking heart, the mob will despawn after the world is reloaded. This can be exploited in singleplayer worlds to despawn any creaking that is following the player at a risky situation. Summoned creakings aren't affected.
How to reproduce
Spawn a creaking with a creaking heart.
Let it follow you a few blocks away from the heart.
Save and quit, then reenter the world.
Expected result
The creaking would stay at the same position it was before the world was reloaded.
Observed result
The creaking despawns after world reload, then reespawns in another position if close enough to the heart.
Linked issues
Attachments
Comments 3
I will note that in the 24w40a changelog, it is implied that is might be intended:
The Creaking Spawn Egg will spawn a Creaking mob that is not connected to a Creaking Heart. The Creaking mob will persist through day and night, loads and saves, and will take damage from attacks and other damage sources. It has one point of health (half a heart)
However, it isn't very clear about how transient creakings should behave, that's why I'm reporting it.
Thank you for your report!
After consideration, the issue is being closed as Working as Intended.
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Can confirm, relates to MC-277070