Just confirming the bug, using 3.0.8.
I'm also running 10.11, on a 2009 mini.
I tried 3.0.8, loaded Duvivier's "Panique". The audio was so incredibly out of synch, I was shocked.
I've switched back to 2.2.8, which works as expected.
Could this be V3 / OS10.11 issue??