my friend owns a minecraft realm, and the world had experiments on. (the realm world was old, if that matters.) and then i got a happy ghast named Zobert while the happy ghasts were experimental but once the Chase the Skies update released, i joined and zobert wouldnt let me ride him, he wasnt tempted by snowballs, i couldnt remove his purple harness, he wouldnt stay near home position and the most i can do is lead him.
Environment
i was playing on an xbox series x with vibrant visuals on. (doubt im using this environment box right lol)
This issue will not be fixed, see MCPE-220849.