QwiicBus Endpoint with SparkFun Mux (TCA9548A)

Qwiic System
1

I’m trying to connect two triad spectroscopy sensors (AS7265x) to a SparkFun Redboard with Mux and QwiicBus Endpoint in between. The system works fine when I click the two sensors directly to Mux, but whichever sensor is connected with the QwiicBus doesn’t initialize properly. I’m pretty sure it’s a software issue but I’m not sure what’s going on

#include <Wire.h>

#include <SparkFun_I2C_Mux_Arduino_Library.h> //Click here to get the library: http://librarymanager/All#SparkFun_I2C_Mux
QWIICMUX myMux;

#define NUMBER_OF_SENSORS 2

#include "SparkFun_AS7265X.h" //Click here to get the library: http://librarymanager/All#SparkFun_AS7265X
AS7265X **sensor;  //Create pointer to a set of pointers to the sensor class

void setup()
{
  Serial.begin(115200);
  Serial.println("test2");
  Serial.println();

  Wire.begin();

  //Create set of pointers to the class
  sensor = new AS7265X *[NUMBER_OF_SENSORS];

  //Assign pointers to instances of the class
  for (int x = 0; x < NUMBER_OF_SENSORS; x++)
    sensor[x] = new AS7265X();

  if (myMux.begin() == false)
  {
    Serial.println("Mux not detected. Freezing...");
    while (1)
      ;
  }
  Serial.println("Mux detected");

  byte currentPortNumber = myMux.getPort();
  Serial.print("CurrentPort: ");
  Serial.println(currentPortNumber);

  //Initialize all the sensors
  bool initSuccess = true;

  for (byte x = 0; x < NUMBER_OF_SENSORS; x++)
  {
    myMux.setPort(x);
    if (sensor[x]->begin() == false) 
    {
      Serial.print("Sensor ");
      Serial.print(x);
      Serial.println(" did not begin! Check wiring");
      initSuccess = false;
    }
  }

  if (initSuccess == false)
  {
    Serial.print("Freezing...");
    while (1)
      ;
  }

  Serial.println("Mux Shield online");
}
2

I noticed that by unplugging some of the other sensors attached to Mux, I was able to run the code properly. Am I not getting enough power to the far sensor? Are there any solutions?