Mobs on leads get jammed often

Hello, I wanna start by saying I'm not entirely sure if this is a bug, exactly. But the results are a little annoying either way, so I wanted to share.

Issue:
When using the lead to move more than one mob (sheep, cows, pigs) at a time, the mobs will often get jammed when trying to move through a single (empty) block space. They'll just run into each other and get stuck, both trying to move through the space at the same time. Sometimes if the player moves side to side, you can get one of the mobs to move back, and they'll start walking through the space single file. It'll sometimes take me a few minutes to get it right, longer depending on how many I try to lead (usually no more than 4).

It doesn't seem like a bug per sey, but since a fence door is only one block wide, I run into this problem frequently, and it can get frustrating, and makes moving herds more tedious.

The game is certainly playable despite this. But it'd be nice if it were possible to fix somehow, like making certain mobs move in a certain pattern related to each other when near a fence and on a lead? I'm not sure.

Thanks for your time, either way.