Hello There,

  Well I Just Wanted To Report This Bug That I Hope You Could Fix In The Next Coming Release.

  Yesterday, When I Was In My Realm Working On The Map...I Realized That The Lobby Particles Were Not Working...So I Checked The Command Block And The Command Was Correct ...(The Command Was Working In MCPE 1.9.0.15) ...Then I Tried A Different Particle Effect But Nothing Changed...So I Thought This Is A Bug That I Have To Report Here.