Twitter Sound Notification Problem

[Encom82]

For some months now my twitter notification sound changed from the bird sound to tri-tone, but the bird sound is still selected in the sound settings. I reinstalled Twitter, changed sounds but continues to make the same tri-tone sound, any idea of how to fix this?

 

[Grayburn]

For some months now my twitter notification sound changed from the bird sound to tri-tone, but the bird sound is still selected in the sound settings. I reinstalled Twitter, changed sounds but continues to make the same tri-tone sound, any idea of how to fix this?

Since when I joined Twitter & got an iPhone in 2009 I've never seen the option to change the incoming notification of the Twitter app. The tweet setting in sound settings is only for outgoing tweets.