I started mining in L1 West, but pressed the cancel button. The little *tink tink tink* didn't stop. I even left the area, only to be haunted by the *tink*ing of my disused pick.
I'm going to have nightmares of phantom mining sounds tonight. This happened to me when I started mining, I canceled mining before it was done, and walked off. The sound followed me for practically forever.
Had this issue but in reverse. I mined the wrong rock, hit cancel and it was still dinging away while I was stopped. Started to mine a chunk of another rock nearby and instead received no dinging of the pick for any rocks mined there after until a reload.
I had the same persistent sound effect thing happen with the digging sound from my hoe after tending a plot: it just kept going even though I wasn't tending any more, and followed me even when I went to another area. Reloading was the only way I could find to stop it.