MKRWIFI1010 and NICLA SENSE

I have a MKRWIFI1010 connected via ESLOV to a NICLA Sense and would like to upload sensor data to IoT. I am using the example sketch for IoT, but after connecting to WIFI I can see two temperature readings in the serial monitor, after that the board disconnects and does not get back. Connection to the IoT cloud does not happen either. If I run the sketch without IoT connection, everything works fine, IoT connection without Nicla works fine as well, jut together they do not work. Any idea? is it the board (as most Nicla sketches are based on H7)? Anyone got this Board-Nicla-IoT combo working?