Boat With Chest doesn't distribute items evenly

 

Steps to Reproduce:

[1]: Set up like in the attached image
[2]: Turn on f3 + b hitboxes and make sure the Boat is in the centre, with the hitbox over all 9 hoppers

[3]: Place items in the Boat With Chest

[4]: Check all the hoppers

Observed Results:

The items only go in 1 hopper

Expected Results:

The items should be evenly distributed like it has in previous versions

Notes:

I was trying to make an automatic iron block farm, but when I used the Boat With Chest, it didn't distribute the items evenly in the hoppers like it has in previous versions