Not happy with the app, really app is developed by Sony?

When I want to play music from network share, able to play music which is good but when I go back to different app and come back to this app selection is gone and again comes to home screen and again need to walk though where I wanted to go and play music. When I come back to the app from different app or lock phone and unlock phone I wanted to be where I was before. Always goes to home screen and irritating.

Goodappuser about Sony | Music Center