Controller firmware updated to version 3.3 and synchronization of switch status between Node-Red, Google Home and KBOX Smart applications works without any problems.
In the attachment there is an example file for others - working node for 2 switches, which can be easily expanded for 8, 16, 32 switches. After import to Node-Red you need to change IP of the Kincony controller and insert correct token for Google Home (https://node-red-google-home.herokuapp.com/) in NORA node.
Unfortunately, unable to sync yet with the Kincony Smart Home App (cloud app).
In the attachment there is an example file for others - working node for 2 switches, which can be easily expanded for 8, 16, 32 switches. After import to Node-Red you need to change IP of the Kincony controller and insert correct token for Google Home (https://node-red-google-home.herokuapp.com/) in NORA node.
Unfortunately, unable to sync yet with the Kincony Smart Home App (cloud app).