When you break a hopper in creative mode focusing the below-block but focusing the hopper hitbox, there will be the below-block breaking particles with the hopper breaking particles.
MC-14851
Wrong breaking particles when breaking hopper
Resolved
Duplicate
0
Florian Cassayre
(Unassigned)
Unconfirmed
Minecraft 1.5.1
Retrieved
Duplicate of MC-9998, please use the search function to see if your bug has already been submitted. Currently over 55% of tickets are being closed as duplicate.