Sometimes "Start radio" button gives "Empty list"

[Marisa-Chan]

I just trying to play some random tracks from media folder with some OST's, so I press "Start Radio" button in needed directory. But sometimes it's gives "Playback list is empty" for folders that's was successfully played before. And for other folders it's still works. And some time letter it's somehow fixes or sometimes helps start "radio" for other folder or close app.

DSub version is 5.5.3
Airsonic Server 10.6.0.20200424173747