found a workaround for the disappearing que problem. Let's say that you have 10 songs in your current que. If you search an album and just hit the album it will delete your que and replace it with the album you selected,
The workaround: If you want to add an album and retain your que, hit the 3 dots (aka hamburger) next to the album and you get options. If you hit "add next", it will insert the album after what ever is playing and retain the que. If you hit "add last" it will add the album at the end of your que and retain everything above it. Hope this helps, cheers.
Actually, a couple of days ago I realised that procedure would work. But it only took a second for me to screw up and click on an album in my Favorites. Queue status...gone.
I do appreciate you sharing this workaround with the forum.