The redstone ore was given an arm animation for lighting it up by right clicking on it, but even though it is lit already you can still right click on it and there will be an arm animation. It is doing no action and there is an arm swinging animation.
Related issues
relates to
Comments
muzikbike
SPGoding
See MC-163863.
NeunEinser
It produces a burst of particles and the animation is intended, as described by the linked ticket.
This is because it emits an extra burst of particles per click.