Vexes aren't a humanoid model anymore

As of 1.19.3 vexes aren't a humanoid model anymore, causing them to no longer render pumpkins, torches or any other item on their head if I put them onto the head with /item. In addition to that the vex looks very ugly compared to before 1.19.3 and for some reason looks more like the allay even though they are completely different mobs.