Arpeggio markings not playing full chord

1) Make a full chord in bass and treble lines of piano part (multiple notes per staff)
2) Add arpeggio to top or bottom staff
3) Adjust to cover full chord
4) Playback Midi

For me at least, the pink dotted line (no matter where I move the bottom/top of the arpeggio to) sticks to the top most note in the measure I initially added it to.

Mine is at the very end of my piece and it is currently playing the bass line all on beat 1 and arpeggiating the treble line