I think Effortk refers to the Cooldown timer, which "resets" itself when you place the item from one item spot to another.
In fact, it basically re-calculates the amount of time of cooldown (or here, item) already passed and how much more has to pass yet and basically "re-sets" in a visual kind to make it more obvious.
This is not an Audio Feedback or bug, but merely a misposted observation. :P
Like, completely wrong post corrected.