SDFat source– getting number of files in directory after change of path

[pypypypywong]

Hi All!!

I am follow the example in https://github.com/pschatzmann/arduino-audio-tools/blob/main/examples/examples-player/player-sdfat-i2s/README.md

I wish to change the source path to a different directory on the SD card then find out the total number of .wav files in that directory in order to use them as a max index value.

I start my audioplayer as per the example and then (upon a button press) change the directory by calling:

player.end();
source.setPath(myNewPath);
player.begin();

however when I call
int maxFilesInDirectory = source.size();

I am finding that the number of files returned is as per the original path (set in the source's constructor), not the new path I have just set via source.setPath(myNewPath)

The audio files from the new path play just fine, just the source.size() is incorrect.

Am I missing something here?

Hardware is esp32 with standard SD card reader as per readme above. Audio chip is Max98357A.