RandomAll is not working

[S-Snowball]

Hi,

Im trying to play all mp3 files from the SD Card randomly.

On my SD Card, there are no folders, just 30 mp3 files. All files are beginning with 00* like the examples in the docu

The example Code is working: https://github.com/PowerBroker2/DFPlayerMini_Fast/blob/master/examples/example/example.ino

But when I change the line
myMP3.loop(1);

to
myMP3.randomAll();

This is not working. Can you help me to play all Tracks randomly after there is Power on?

[PowerBroker2]

When you run the sketch in debug mode, what prints to the monitor?

[S-Snowball]

debug?

I cant find debug in the Arduino IDE

But the Serial Monitor:

Setting volume to max
Sent Stack:
7E FF 6 6 0 0 1E FE D7 EF

randomAll
Sent Stack:
7E FF 6 18 0 0 0 FE E3 EF