NOTE: the following issues where tested in a buffet, crimson forest world set to surface.

Sometimes, When fighting hogling on hill-like environments, you can get two blocks under the hoglin diagonally. Instead of pathfinding to the player, the hogling will remain still, Vulnerable and unable to attack, while the player can still attack the mob, killing them no problema.

Another potential Issue I've noticed, is that hoglins, when in water, they simply sink to the bottom and can swim back up, which could easily be exploited for free leather & raw porkchops. Baby piglins drown in 1 block deep water, while adults only require two.