Some tips/improvements.

I’ve disabled the sound in the omx-stream by adding the arguments “-n”,“-1”, in the node_helper.js

 payload.forEach(s => {
            var args = ["--live", "--video_queue", "4", "--fps", "30","-n","-1",
                this.config[s.name].url
            ];

I had problems with the omx-streams (i have three) not restarting correctly. So instead of stopping the processes and then starting, i’ve changed the command to restart.

                for (var proc in list) {
                    if ("name" in list[proc] && namesM.indexOf(list[proc].name) > -1) {
                        if ("status" in list[proc].pm2_env && list[proc].pm2_env.status === "online") {
                            console.log(`PM2: ${list[proc].name} already running. Stopping old instance...`);
//                            pm2.stop(list[proc].name, errCB);
                            pm2.restart(list[proc].name, errCB);
                        }
                    }
                }