Bad motion blur on moving skinned mesh + moving camera

Hi there,
I've setup my scene properly using the trial version, but since I've upgraded to the full versio (unity 5), the scene is showing some inconsistency. I have a moving camera tracking a skinned mesh, and I have lots of motion blur in this object. Here are the screenshots from the trial version (both RGB and the debug) and the full version:
What have changed in the full version?
Thanks
I've setup my scene properly using the trial version, but since I've upgraded to the full versio (unity 5), the scene is showing some inconsistency. I have a moving camera tracking a skinned mesh, and I have lots of motion blur in this object. Here are the screenshots from the trial version (both RGB and the debug) and the full version:
What have changed in the full version?
Thanks