You were right, it was the connections between the GPIO pins. I replaced the wires and it now works!

I can't believe this was the problem the whole time!

Hi, I have a compute module 3 running Ubuntu MATE 16.04. I have attempted to get dual cameras to work, but I have been completely unsuccessful and it's not very clear to me why. I have tried to follow all the steps in this guide , as well as follow the steps in this thread , but to no avail. I have ...