Whenever i post pic directly on facebook from iphone 6 photos app, it stopped making swish sound in it but it works perfect when i post pic on twitter and it makes tweet sound, i hard rebooted my phone and checked every notification sound option in app and in iphone 6 but it didnt work, i checked sounds option also but nothing works, dont know wether its ios 8.3 bug or facebook app bug infact i updated my fb app also.