Panning of click.ogg in menu dependant on player angle

The stereo panning of click.ogg when played due to menu interaction appears to be based arbitrarily on the player's angle (not pitch), when sounds played from menu interaction should be played with no panning at all. The panning persists if you save and quit to the main menu.
The attached zip is a resource pack that replaces only click.ogg, which makes the stereo panning more obvious.