Ken, any chance, that it’s a sensor fault? Have you tried swapping the sensors? The connected pin number should be an easy thing to test. Either follow the trace on the board to the esp32 or use a multimeter in diode check mode – unplug the board first! – (preferably with sound). From the top of my head I’m not sure, if the sensors are GND or 5V based, but I guess the first; so one pin of the sensor is connected to GND, the other is to the esp somewhere.
Once you know where it’s connected on the esp32, you can check any esp32 pinout diagram on the net and adjust the esp32.h accordingly.
What’s the type of the second sensor?