NetJack2 from slave's audio interface

Using MOD devices Usage Questions
#1

Hello,

I’m trying NetJack2 on MOD Dwarf.
https://wiki.mod.audio/wiki/Audio_Through_NetJack2

Can I connect to the master Dwarf from the slave’s audio interface?

I can see the Hardware Audio from Slave1 and Slave2 on WebGUI.
On my slave Linux jack-aware software like vlc or supercollider can send sound.
But can’t send the sound signal from the guitar via the slave’s audio interface.
I can’t send the MIDI signal from the slave via Hardware MIDI from Salve 1 too.

Is that normal?