Audio Resonance Audio Engine start problems

Hi!

I have been playing around with Resonance Audio plugin for unity. It sounds very good when it works!
I have a room with a couple of objects that emit sound...you can look around and hear the different sounds in 3d space. You can also tap different objects and they will sound like the material they are made of. The only problem is that when I start the level in unity nothing is spatialized. its only when i start tapping on things it will suddenly go spatialized. All the objects have audiosource and Resonance source component on them. One other thing that works is to Mute the Master Audio channel and then UnMute it while playing, then the room is suddenly spatialized... very strange! anyone have an idea?