If no power or data is being provided from the usb-c ports on arm 2, there is one most likely cause:
The usb-c connection is swapped on arm 1, or disconnected.
On the bottom side of arm 1, ensure that the usb-c with the yellow stripe is connected to the power port, and that the all black usb-c is in the data port
On the power strip at the base of the robot, ensure that the yellow striped usb-c is plugged in and receiving power. For data ports, ensure that the cables connected to the camera and video editing device are data-transfer cables, not charge-only.
If there is still no power or data, try using a different usb-c cable.