Yes, I have my custom code both in uno and in esp.
basic protocol is;
get mtr speed on esp web server.
send "MtrSpeed:0-255" on serial to arduino
Arduino responds when speed is set to pin.
esp webserver responds.
I got a new device, to verify, and even there, I face the same issue.
When I have sw 5 and 6 on, and reset the device, my serial.println stuff comes to serial monitor, but what I give as input in serial monitor does not reach esp.