I noticed with the new allay mob that after I give it a stackable item it has trouble picking that type of item up. It will approach the item on the ground and then start flying very quickly. It will fly back in forth very fast (like if the player is too far away) and not pick the item(s) up. I wasn't too sure if this is a bug or not, but I thought I would say something! I also don't know what caused it's behavior to change it was picking up items fine at first, but something changed. I added a quick video to show it's behavior!