NodeJS With Express Send data problem

I added SDK to my nodejs + express + socketio server. Everything seems fine. But Countly logs to console but i dont see anything in my console. URL and Appkey correct. And i got data from other c# desktop application. Is there a trick for nodejs ?

Session started
Got metrics
{"_app_version":"0.0","_os":"Linux","_os_version":"4.4.0-148-generic"}

I think its about PM2 process manager. When i stop the process from pm2 and start from command line with node app.js it sends now. But why dont work with pm2 ?

I have not tried it with pm2, but is there any way pm2 is tapping into network requests to monitor them and that messes something ?

let me investigate this issue from pm2 docs.