WiFi and QSPI Flash can't work together

Hardware GIGA R1
1

MBRBlockDevice::init() return error -4006, when called after attempting to connect to WiFi network.
MBRBlockDevice::init() returns success (0), when call to connect to WiFi is commented out.

QSPIF_BD_ERROR_DEVICE_NOT_UNIQUE = -4006, /* Only one instance per csel is allowed */

Anyone have any suggestion?

#include <WiFi.h>

#include "MBRBlockDevice.h"
#include "QSPIFBlockDevice.h"

void UseBlockDevice() {
  QSPIFBlockDevice root(QSPI_SO0, QSPI_SO1, QSPI_SO2, QSPI_SO3, QSPI_SCK, QSPI_CS, QSPIF_POLARITY_MODE_1, 40000000);
  mbed::MBRBlockDevice blockDevice(&root, 3);

  int err = blockDevice.init();
  Serial.print("blockDevice.init(): ");
  Serial.println(err);

  err = blockDevice.deinit();
  Serial.print("blockDevice.deinit(): ");
  Serial.println(err);
}

void ConnectToWiFi() {
  if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("Communication with WiFi module failed!");
    return;
  }

  Serial.println("Attempting to connect");
  auto status = WiFi.begin("BadSSID", "BadPassword");
  Serial.println(status == WL_CONNECTED ? "Connected to wifi" : "Failed to connect to wifi");
}

void setup() {
  Serial.begin(9600);
  while (!Serial) {
    ;
  }

  ConnectToWiFi();
  UseBlockDevice();
}

void loop() {
}

Output:

Attempting to connect
Failed to connect to wifi
blockDevice.init(): -4006
blockDevice.deinit(): 0
2

The solution is to not create a new QSPIFBlockDevice variable but rather to get an existing instance using QSPIFBlockDevice::get_default_instance().

mbed::MBRBlockDevice blockDevice(QSPIFBlockDevice::get_default_instance(), 3);
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