eta: I tried something potentially risky and swapped the controller with another C1 that has 4 good boards. Seems to have fixed it. It works now with any combination of boards connected with the other controller. Kinda strange but I'm not complaining. Thanks for the input VirosaGITS. I appreciate it.
My C1 was able to run with a board down. I had one that eventually had 1 board I could not get fixed, and one that was hit/miss. But I'm pretty sure I was able to unconnected the ones that didn't work (it's been a while).
Eventually I parted out on it, and made more then I thought I would. I have no idea on market no compared to then but you might look at parting it out.