Laravel Flysystem WebDav list directory

Question

I'm trying to get list of directory on WebDav through Flysystem however is it empty. I'm using Laravel Graham's Campbell integration of Flysystem:

dump(Flysystem::listContents('test'));

gives me empty array while

dump(Flysystem::read('/test/test2.txt'));

gives me content of file.

Could you please help me understand what I'm doing wrong?

Thank you!