Not receiving MQTT messages

Hello,
I have added an NPM module mqtt which enables functionality to send/receive MQTT messages.
It is working OK when I try to connect to server or send a message but I am not receiving any messages.
Does someone have any idea why it might be ? Can it be due to Wix - not allowing inbound connections (mqtt works on port 1883) ? Although a session with MQTT server is established and keepalives are exchanged every 20 seconds…

Thank you in advance !

Vasil

Assuming that you have gone through all the MQTT info like here.
https://www.npmjs.com/package/mqtt (version 3.0.0)

Also have you seen that the MQTT version in Wix Package Manager is only version 2.18.8 which is 2 years old now, whereas the latest version is 3.0.0 as in the link above.
https://support.wix.com/en/article/corvid-managing-external-code-libraries-npm-with-the-package-manager

If you want to go by the 2.18.8 settings, then please go by the MQTT page here.
https://www.npmjs.com/package/mqtt/v/2.18.8

Make sure that you read the notes section as well.
https://www.npmjs.com/package/mqtt#notes

conseguiu fazer o mqtt funcionar no velo wix?