mp4 render problems

Hi guys, hopefully you can help me out again.

I have tried to render to mp4 with two different render options. Mainconcept AVC and Sony AVC are giving me problems both seperate issues.

First issue is I'm using BCC Match Move, which involves two layers with BCC Match move as a compositing mode and multiply mask on the other layer. The Multiply Mask layer which is being 'tracked' to the other layer does not show up on Mainconcept AVC render. this layer is not visible.


Second issue. Sony AVC shows this layer for the motion track fine, but does not render the audio (and yes I do have Include Audio checked.




I need at least one of these issues resolved if possible!