The bug
Some particle effects are offset, but only if they belong to a certain entity. They aren't offset if the /particle command is used.
Affected particles
List may be incomplete.
Potion effect particles
Damage indicators
Entity death clouds
Breeding heart particles
Green particles when feeding baby animals
Blaze smoke particles (MC-163520)
Villager trade particles
Purple witch particles
Purple particles of endermen and endermites
Villager sweat particles during raids
Angry villager particles
Particles from unsuccessfully trying to tame a pet (parrot, wolf, cat)
Linked issues
is duplicated by
MC-163126
Heart particles are misaligned
MC-163151
Potion particles uncentered
MC-163169
Breeding hearts
MC-163188
When taming a horse the heart particles are to the side
MC-163298
The animation you get when you kill animals and mobs is broken.
MC-163520
Blaze smoke particles render at the wrong position
MC-163659
Animal Breeding Particles in wrong location
MC-163770
Breeding Particle Offset
MC-163834
Bee Particles are off
MC-163859
Blaze particles are off-centered
MC-163911
Blaze smoke particles appear offset from the model
MC-163993
Position of entity's purple particle appears wrong.
MC-164018
Animal breeding love hearts not with proper entities
MC-164051
Death smoke, feed smoke and heart or status effects particles are not positioned properly
MC-164301
Love particles that appear when breeding a mob, appear too far from the mob itself
MC-164871
Iron golems' status effect particles appear at incorrect locations
MC-165072
Blaze smoke texture isn't centered correctly
MC-165443
Taming a parrot displays particles offset from the animal
MC-165454
Breeding particles not showing
relates to
Attachments
Comments
violine1101
muzikbike
May relate to MC-45749
Please add:
Trade with villagers
Witch's purple particles
Endermen and Endermite's purple particles
Villagers sweat particles during raids
And villager angry particles.
pneuma
Confirmed in 19w45a
coschevi
This seems to affect all particle effects that belong to a certain entity. I've edited the ticket in order to include all that I found.