Looking for some ideas here. I was adding some cards and the motherboard wouldn't boot. I guess I probably pushed the limit of the mobo. Fine, I'll just put the rig back the way it was - 3 RX 570s. Now one card is always running really slow. It is always GPU 0. I can swap the cards around and it is always GPU 0 running slow.
Here are what the core and mem are currently running at. You can see why GPU 0 is slow

I have tried to be as generic as possible with the overclock settings:

Any suggestions?
Is the GPU plugged into the exact same PCIe slot as before? Maybe try a different slot? What MOBO are yo using?