It turns out the First 4.11 had these features broken:
1. Playlist Volume slider didn't work.
2. Tools Menu > Audio Controls Fade In & Fade Out were ignored.
3. Background Audio Fade In & Fade Out were ignored.
The Second 4.11
. out the next day fixed these.
You were one of the early downloaders, and we do truly apologize this "biggy" problem got through our testing.
We were all focused on the major Edit Songs changes added to Select Multiple View.
DIRTY LAUNDRY: We also were digging for why we at MTU, but NOT most of our Beta Testers, could hear some audio dropouts within the first few seconds of a Playlist song playing. That is how the 1, 2, 3 above snuck in. We didn't find the root cause for this yet. However, 4.08 didn't have it and no one has complained to us about it in 4.09, a,b,c,d,e or 4.10 so we shipped with it the same as has been in 4.09 on. It's one of those decisions I had to make that I don't like to make... ship with a known imperfection. We shouldn't have done anything in 4.11 except fix the crash bug in 4.10 when Intermission's "Always On" is disabled (unchecked). My bad!
We'll be on this audio problem first thing in Hoster 4.20 when we open it back up. We're upgrading some other products since Hoster has put them on the back burner for most of this year.