When the player is using an item (for example: eating a bread, toothing a goat horn, or charging a crossbow/bow/trident) and then pause the game, the items will immediately reset to it's default position
Steps to reproduce:
Give yourself a bread, goat horn, or crossbow
use the item then pause the game
Expected results:
The items will holds it's current animation until the game is unpaused, like in Java Edition
Observed results:
The items immediately reset to default position as soon as you paused the game
Can confirm.