New Firmware with Nodered/Domoticz, not working MQTT switching

var idx_shelly_table = [
    //[ domoticz idx, shelly name topic, relay ],// syntax
            //192.168.5.131
    [15670, "shelly-plug-Dressoir-R-6EC6C7", 0],    // Plug Kamer dressior rechts
            // 192.168.5.132 Jongens
    [12860, "Shelly-Jongens-25-C4D304", 0],         // Dylan
    [12861, "Shelly-Jongens-25-C4D304", 1],         // Ryan
            // 192.168.5.133 Garage
    [12706, "Shelly-Garage-25-C49121", 0],          // Werkbank
    [12707, "Shelly-Garage-25-C49121", 1],          // Garage
            // 192.168.5.134 Keuken
    [12635, "Shelly-Keuken-25-10521C0730A0", 0],    // Nis
    [12636, "Shelly-Keuken-25-10521C0730A0", 1],    // Aanrecht
            // 192.168.5.135 Slaapkamer
    [12863, "Shelly-Slaapkamer-25-C47EAA", 0],      // Kaptafel
    [12862, "Shelly-Slaapkamer-25-C47EAA", 1],      // Slaapkamer
            // 192.168.5.136 Terras
    [13217, "Shelly-Terras-25-84CCA89F6640", 0],    // Terras keukenraam
    [13218, "Shelly-Terras-25-84CCA89F6640", 1],    // Terras Bamboe
            // 192.168.5.137
    [13219, "Shelly-Warmtepomp-25-C48DB3", 0],      // Warmtepomp
    [13220, "Shelly-Warmtepomp-25-C48DB3", 1],      // Over
            // 192.168.5.138 
    [16301, "Shelly-Over-98F4ABD0B793", 0], // Over
            //192.168.5.139 Poortlampje tuinkast
    [14363, "Shelly1pm-84CCA8A7FB2F", 0],           // Sh Poort Lampje T [ tuinkast ]
            //192.168.5.140
    [14199, "Shelly-Badkamer-25-84CCA8B1760E", 0],  // over
    [14200, "Shelly-Badkamer-25-84CCA8B1760E", 1],  // Spiegel
            //192.168.5.141
    [15665, "shelly-1pm-gar-sol-E09806A9FCF6", 0],  // Garage solar
            //192.168.5.142
    [16307, "shelly-plus1-DakrandSolar-80646fe4555c", 0],// Dakrandsolar
            // Geen IP
    [13221, "1-1D929B", 0],    // ], 98F4ABD0B793 Over shelly 1
];

if ( msg.src == 'shelly' ) {
    //todo: support second relays
    var matches = msg.topic.match( /shellies\/(.*)\/relay\/(\d)/ );
    if ( matches.length == 3 ) {
        var shelly_id = matches[1];
        var shelly_relay = parseInt( matches[2] );
        
        for ( var i = 0; i < idx_shelly_table.length; i++ ) {
            if ( idx_shelly_table[i][1] == shelly_id && idx_shelly_table[i][2] == shelly_relay ) {
                // convert to domoticz stuff
                var val = msg.payload == "on" ? 1 : 0;

                msg = {
                    payload:
                    {
                        nvalue: val,
                        command: "udevice",
                        idx: idx_shelly_table[i][0],
                    }
                }
                
                return [msg, null, null];
            }
        }
        
        // shelly not found in table
        msg.shelly_id = shelly_id;
        msg.relay = shelly_relay;
        return [null, null, msg];
    }
}

if ( msg.src == 'domoticz' ) {
    for ( var i = 0; i < idx_shelly_table.length; i++ ) {
        if ( idx_shelly_table[i][0] == parseInt(msg.payload.idx) ) {
            if ( msg.payload.nvalue == 1)
                msg.payload = "on";
            else
                msg.payload = "off";
                
            msg.topic = "shellies/" + idx_shelly_table[i][1] + "/relay/" + idx_shelly_table[i][2] + "/command";
            return [null, msg, null ];
        }
    }
}

// dismiss
return [null, null, null];