OK SO IM f*#@ING STUPID AND REALIZED I WAS PULLING THE .PCK FILE FROM THE WRONG PLACE. For people out there who had the same problem, the .pck files you're looking for are in natives\x64\streaming\sound\wwise and not natives\x64\sound\wwise. the .pck file should be by themselves and not accompanied by .bnk files. If you try to extract the wrong .pck files, the .wem files will be empty. soooooo.... yea. get the right file location.