Sorry for the late reply but I'm just returning to this project. I now have 16 channels of audio displayed in the PIP. The PIP is still doing a breakaway. For PIP16, the video is routing but the audio is not. I created a Matrix/grid router to show what's happening. All levels route to MON05 but only the video to PIP H1 16. There has to be a setting somewhere that I need to change. Thank you.
Also, Bars is source 2 and NET5 is source 4. On the Matrix, if you scroll right, I have the audio channels for sources 2 and 4. There is no audio (purple triangles) on PIP H1 16, only the red video triangle.

#Ultrix