Custom module debugging

Hello, I need help on a custom module.

I use faders to manage the quickcontrols in cubase. When I create them directly in the main OSC session they work perfectly in bi-directional mode using virtual port. Great !
I try to integrate them in a custom module i use (developed by another member ) to generate them according to the instrument selected in cubase.
It works in part: OSC generates the faders and they send the data to Cubase correctly.
However, when Cubase play the fader doesn't update even though OSC receives the messages correctly :
(DEBUG, MIDI) in: CONTROL_CHANGE: channel=1, cc=50, value=119 From: midi:midictrl

Custom-module.js (55.4 KB) OSC Quick Control.json (136.4 KB)

I don't know where to intervene in the custom module, can someone help me?

Cordialement

[EDIT] For those who are interested, here is the solved version :
Custom-module.js (55.5 KB)

You're bypassing the incoming messages with the empty return statements. See comments in the docs example.

Merci beaucoup Jean-emmanuel, you make my day!