Stereoscopic camera won't turn on both eyes

I'm trying to have video game footage on the left and my camera on the right.

I know the techniques about distorting distorting pictures which will let me squish them into side by side half mode.

The problem is when I turn on One camera the other camera turns off and vice versa while video game footage is on.
Both cameras are mounted on the same device called a minoru. They register as separate cameras on my Macintosh.

I'm the same one who's getting choppy animation on my camera but good animation on my video. I tried turning down the resolution on the camera and it still doesn't work and the video game and it still doesn't work.

Would adding a power adapter help in powering both camera simultaneously plus the mono microphone?

Also up close my arm looks like there's a droopy Shadow under it like it's in motion except it's staying still.
 
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