Cant get a port to work

I am running an ECG-P12S. I have 5 ports connected for 100 node 12v ws2811's. I am running Unicast from xlights to my controller. I can only get the first 50 nodes to light up on port 8. Ports 9-12 seem to work fine. Here is what I see from the status page and string config. Can someone take a look and see what I am doing wrong please. I know its not the lights as I moved the lights from 8-9 and they work fine.

Theres no effects on at all?

I got it to work. I forgot that I had previously used a Null pixel and didn't remove that setting....all is good .

Thank you