Ever since that pirates update last year, the mansion lost it's game play music. Remember the piano music? You can still hear it when you go to find Phineas, but it used to be in the game too. I really miss it, and have sent VMK a report to get it back, no reply of course. The music that stays now is the mansion lobby music.

Is anyone else having this problem?

hmm not really

I remember the piano playing, just haven't noticed it gone lol.