Which function are you using?

I just try to use the example as it is.....what you mean function??..the example use:

M5.Lcd.setWindow and
M5.Lcd.pushColors

M5.Lcd is made by copying TFT-eSPI, but the examples has not been corrected although the function has changed largely due to the change made in February this year.
Also, immediately after that, TFT-eSPI has many bug fixes.
Therefore, I think that it is necessary to make In_eSPI again based on the latest TFT-eSPI and correct the examples as well.

The current stable version is 0.2.5...

Ok...I review and make the changes and now its working:

// Icons are stored in tabs ^ e.g. Alert.h etc above this line
// more than one icon can be in a header file

/*
This sketch demonstrates loading images from arrays stored in program (FLASH) memory.

Works with TFT_eSPI library here:
https://github.com/Bodmer/TFT_eSPI

This sketch does not use/need any fonts at all...

Code derived from ILI9341_due example

Make sure all the display driver and pin comnenctions are correct by
editting the User_Setup.h file in the TFT_eSPI library folder.

#########################################################################

DON'T FORGET TO UPDATE THE User_Setup.h FILE IN THE LIBRARY

#########################################################################
*/

#include <M5Stack.h>

// Include the header files that contain the icons
#include "alert.h"
#include "Close.h"
#include "Info.h"

long count = 0; // Loop count

void setup()
{
M5.begin();

M5.Lcd.fillScreen(TFT_BLACK);
M5.Lcd.setSwapBytes(true);

// Draw the icons
M5.Lcd.pushImage(100, 100, infoWidth, infoHeight, info);
M5.Lcd.pushImage(140, 100, alertWidth, alertHeight, alert);
M5.Lcd.pushImage(180, 100, closeWidth, closeHeight, _close);

// Pause here to admire the icons!
delay(2000);

}

void loop()
{
// Loop filling and clearing screen
M5.Lcd.pushImage(random(M5.Lcd.width() - infoWidth), random(M5.Lcd.height() - infoHeight), infoWidth, infoHeight, info);
M5.Lcd.pushImage(random(M5.Lcd.width() - alertWidth), random(M5.Lcd.height() - alertHeight), alertWidth, alertHeight, alert);
M5.Lcd.pushImage(random(M5.Lcd.width() - closeWidth), random(M5.Lcd.height() - closeHeight), alertWidth, closeHeight, _close);

// Clear screen after 100 x 3 = 300 icons drawn
if (100 == count++) {
count = 1;
M5.Lcd.setRotation(2 * random(2)); // Rotate randomly to clear display left>right or right>left to reduce monotony!
M5.Lcd.fillScreen(TFT_BLACK);
M5.Lcd.setRotation(1);
//Serial.println(millis());
}
}

Fix completed. ( #152 )
Please wait for the merge.

Probably, this issue is solved in version 0.2.7