After my friend accidentally punched the egg it teleported straight to the exit portal and when I go to world spawn to pick up the egg at 0, 0 there was nothing here I checked at the sky limit and underground but still didn’t find it.

How to reproduce:

1. Enter the End
2. Kill the Ender Dragon
3. After the egg spawned on top  punch it and it will teleport to a random location or straight into the exit bedrock portal
4. Go to World Spawn if egg fall into the portal{}