Describe the bug
No data produced by a pot. connected to the Feather HUZZAH ESP32 pin A2
Arduino board
Feather Huzzah ESP32
Which components are connected to your device
Pot. to A2, on-change
Screenshots

Notes
The pot. and pin/ADC2 have been tested working with simple Arduino sketch,
// read the value from the sensor:
sensorValue = analogRead(sensorPin);
Serial.print("Pin Value: ");
Serial.println(sensorValue);