Hi,I've applied "flatten all motion with constraint" in Animation menu expecting some simple baking of the constraint/reach/spring animations.

Suddenly I've noticed all AUDIO was was removed? 

I was struggling with using reach target also being able to correct it with Edit motion layer. Usually it says something about Spring and/or Reach target preventing this
(although in timeline at that frame, there is no spring or reach target).

Flatten all motion with constrait baked it , so i could do some changes.

But why audio dissapeared? It has nothing to do with animation, ,does it? :-)