E6804 and lighting issue - Could be a channel setup issue?

Im fairly new to Pixels but its going pretty well ....

I have 2040 Pixels. Each line is 60 Pixels, and I have 34 Lines. My hope was :

Output 1 - 9 Lines - 540 Pixels
Output 2 - 9 Lines - 540 Pixels
Output 3 - 9 Lines - 540 Pixels
Output 4 - 7 Lines - 420 Pixels (Not in play yet)


I have the Outputs defined as :
(all 2811 Pixels, Group Size 1, Color RGB)


Output Pixels Start Channel END Universe Channel
1 540 1 1 4 90
2 540 4 93 7 182
3 540 7 185 10 274

Im not using the last output yet.

It seems the first 9 light up good on the test, followed by the next 9 - good - The 3rd 540 set only lights maybe 300some Lights and stops, looping back to Pixel 1 - 2 1/2 rows are out … Im guessing I did math wrong on the channels? I know the pixels are good since I can swap outputs and that 3rd group lights up fully.

Any ideas what Im missing?

Thanks