modular matrix model

[deacon]

I'm sorry for this question, but I'm stumped.  I've created these models before and they've worked perfectly, but for some reason this one isn't working when outputting to the lights. 

I have a modular matrix panel, 4 columns with 42 nodes in each.  There is one continuous string starting from the bottom left going up and down 4 times. 

I'm setting up the model as:
#strings: 4
nodes/strings: 42
strands/string: 1

It looks perfect inside XLights but when I upload the sequence to FPP it's displaying correct on the first column, then the second column is upside down, third column is correct and fourth column is upside down.

I feel like I'm overlooking something similar and making a silly mistake.

Any help is greatly appreciated! 

[Gilrock]

You need to define it to zig zag if that's how you are wiring it up.  Either do it in the controller or make it 2 strings of 84 with 2 strands/string.

[jnealand]

or 1 string of 168 with 4 strands.  The way you originally set it up you would have to do the zig zag in the controller.  You will get lots of opinions on whether to do the zig zag in the controller or xlights.  My preference is to stay away from controller settings as much as possible since that seems the easiest to muck up and the hardest to fix after you get the show setup.  But it is just my preference, YMMV.

[deacon]

Thank you very much guys, I'll give that a shot.  I'm using an ESP PixelStick from Shelby to run the matrix and it doesn't have the zig zag option.  I typically use san device controllers and would normally do that but this one doesn't allow me to do zig zag. 

[deacon]

Thank you again, your suggestions worked great! Learned a good one today, thank you.