Hello,
I'm using Playmaker 1.7.8.3.  I've recently updated from Unity 5.1.0 to 5.2.2.  Since the update, I've noticed that the game objects in my scene that have an FSM that contains a "Play Sound" action, now plays the specified sound at a much lower volume (even when the volume slider is all the way up).  When I check the source audio in the inspector, it plays at the correct volume.  Is there a correct method (or a workaround) to fix this issue?  Thank you very much!