Peter, I think I have found a Showstopper bug. First, my system is a MacBook 2012 15-inch, running MacOS 10.15.7. I am using an external USB wired mouse. I also have an iPhone SE. If you need more details, just ask.
1) This is a showstopper bug only on the MacBook, and I can reproduce it at will. When I go into a Playlist or the Queue, then click and drag upward (as if to move a song within the list) the program crashes instantly and hard. The crash log is very long, but if you think it will help you I can cut/paste it and send it to you. This bug prevents me from moving songs around in a playlist or the queue.
2) I can't seem to find a way to "double tap" using the mouse or trackpad on the MacBook. I would expect a mouse double-click to work as a double tap, but it doesn't seem to. Nothing I've tried on the trackpad acts as a double tap. Am I missing something?
3) Not sure if this is a bug, or just behavior I don't understand. When I am using the queue in "normal" mode, not Enhanced, if I click on a song in the Songlist exactly 60 songs (I have 200+) are added to the queue, the clicked song and the next 59. If I click on a song at the bottom of the list it adds songs from the top of the list to make it exactly 60. I can reproduce this on my both my iPhone and MacBook. Enhanced Queue mode seems to work fine.
4) Again, on the MacBook, and not sure if this is a bug or behavior I don't understand. When I assign a key in the Actions to scroll the list up or down a page or half page (for example, down-arrow and up-arrow), it also adds the song to the queue. I don't click the song, merely hit the key.
I appreciate your help with this. Thanks,
Dean