Passive mobs clump together vigorously when holding their favorite food. Sometimes making it impossible to feed all of them

When holding a mobs preferred food type they will start to clump together and stand and flicker between all the ones that are in that spot. When trying to breed them sometimes not all the mobs get feed. Its almost as if the hitboxes are not registering with some of these mobs. Cows and Sheep their hitboxes are not colliding with the players and cant be pushed. This might be the core of the issue