The bug
When a "Size:0" slime and magma cube rides on some mobs the rendering position is too low.
Steps to reproduce
Use the following command:
/summon minecraft:blaze ~ ~ ~ {Passengers:[{id:slime}]}
All affected mobs:
Blaze
Cave spider
Chicken
Cow
Creeper
Donkey
Drowned
Elder guardian
Enderman
Evoker
Ghast
Giant
Guardian
Hoglin
Horse
Husk
Illusioner
Iron golem
Llama
Magma cube(Size:1+)
Mooshroom
Mule
Panda
Pig
Piglin
Piglin brute
Pillager
Polar bear
Sheep
Shulker
Skeleton
Skeleton horse
Slime(Size:1+)
Sniffer
Snow golem
Spider
Stray
Strider
Trader llama
Turtle
Villager
Vindicator
Wandering trader
Warden
Witch
Wither
Wither skeleton
Wolf
Zoglin
Zombie
Zombie horse
Zombie villager
Zombified piglin
Linked issues
Attachments
Comments
Confirmed.
I think this has something to do with the size of the hitboxes and how the slimes and magma cubes ride other mobs.