Hey @SnoWake welcome to the forums! I’m super happy my posts inspired you to get started with not only the project in itself but 3D printing too - awesome 
It sounds like you’ve got everything up and running software wise; the fact you’re able to access the Fadecandy Server and it shows your board & serial number is a good sign. As you’ve found, there were some improvements made to the project since that first blog post so it’s a bit easier to get running.
I’ve just checked my board to make sure it’s running the same software and firmware version as yours and it is. Whenever I’ve worked with the project I’ve always found the test pattern dropdown within Fadecandy to be the sure fire method of checking things are working.
The only thing that comes to mind is to make sure both your Fadecandy board, and then by association the LEDs themselves are properly grounded. You’ll see in my diagram (copied below), I connected the ground of channel 7 to the ground of the LEDs. I remember when I was first building my setup, I had some strange issues that were resolved once I added this. Technically the board should be getting a good ground via the USB connection but apparently mine wasn’t.
I liked the Fadecandy board as it did make using these things a lot easier than driving them directly, so it’s strange you’re having issues. Nevertheless thanks for trying the project and keep us posted here, hopefully together we can figure out what is going wrong.