BTW, over the last month or two since I've been using the last MusicBee beta at least, and I think the official release, MusicBee just having it "open" doesn't allow my computer to go to SLEEP.
So, I've noticed this many times (often nap)... I don't know if it's supposed to, if it's a bug, a feature, but just reporting something I've noticed.
So, it's possible the Plugin isn't needed?