Hi, is this a chase running across all 14 channels (1, then 2, then 3 ect)? How long is the on time for each channel?
Below is a link to a tester that is quite good for sorting out problems like this. It enables you to switch on and off channels without needing Vixen or xLights. It was written by one of the Austrailian sesonal lighting guys.
https://www.da-share.com/software/da_tester/
The set it to unicast, the port number is 5568 and you know the IP address you flashed the Nano with.
If you click on the faders tab you can try channels one at a time.
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