My jumpers (top board) are correct, I successfully ran show last year. I was curious about the jumpers on bottom board, currently none are installed. My controllers are configured differential and all channels communicate with PPR-B's. My issue is with v3_4B, my controllers (2) have no response with that firmware. They work fine with v3_4 and dual universe seems to be working correctly. I haven't tested pixel count but plan to this weekend. The documentation states that although v3_4 will support dual universe you will not achieve maximum channel output using WS2811 pixels. Im very curious why my controllers wont respond with v3_4B.