Dynamics in divisi


I have problems with dynamics in divisi setting in dorico.

I have divisi in viola section, I divided them into two.
Both hold a long 8 bar length note, one starts 2 bars later.
And for both staff I have marked p<f dynamic but the Dorico doesn’t play it back. What should I do?

do the dynamics playback in non-divisi staffs?
You might need to enable voice-independent playback in play mode. see: Enabling independent voice playback

If the dynamics in your divisi staves are different, you need to use voice-specific dynamics in addition to independent voice playback.

Thank yoU!