Tools, Weapons And Armor still have a litte bug (sound effects)

in 1.7, 1.8 and 1.9 still have a bug of sound too, just like tools, weapons and armors, it still have some tools, some weapons and some armor dont have a sound effects when break please fix this bug, i really confised with this bug, i spend my time 1 hours to check out what still dont have a sound. please fix this bug (if can fix all of sound bug on the game, thanks)