Possibly related to MC-214870.
The bug
Chickens seem to flap endlessly until they move when the player changes dimensions. Doesn't seem to happen if the player enters the overworld, but occurs in the Nether and The End.
Steps to reproduce
Spawn a chicken in
Place a portal
Push the chicken through the portal
Enter the portal
❌ The chicken will flap endlessly until it moves.
Linked issues
relates to
Attachments
Comments

In 24w36a and related to MC-255153, MC-221315 and MC-94462