Using flow variables in Home Assistant nodes

I recently updated the Home Assistant module in Node-RED and some things stopped working.
This used to work in the past and it doesn’t anymore.

I have a “config” node where I set the value of flow.sensor_id so that I don’t hardcode it in different places of this flow.
It looks like the “Current State” node in Home Assistant doesn’t evaluate the variable anymore.

Does anyone have any suggestion to make it work again?

I answer to myself. Just found out about supported Mustache Templates syntax