Thank you for sharing your configuration!

I'm doing the testing of the ESP-MESH network and I'm interested in what will happen in a case when Mupgrade process is started but one of the nodes is connected to the MESH network but not in a range of a ROOT device?

You can try the https://github.com/maxgerhardt/pio-esp- ... ee/arduino example and take a look at the following forum post: https://community.platformio.org/t/esp- ... rt/19372/9