Looks like there is sample rate issue between the console and the stagebox. The sample rate for everything should be at 48kHz. To make sure your NSB is set to 48k, follow this:
1. Power of the NSB. Without anything connected to the console, set the console sample rate to 48kHz. Once completed, power the console off.
2. Connect everything up as you would normally would and power all equipment on.
3. With everything connected and running, set the sample rate of your console to 44.1k. A message should appear indicating the console needs to reset... this is normal.
4. Once the console has reset (it not power off), set its sample rate back to 48k. Same message should appear.
5. Once the console is reset (at 48k), power off the NSB for about 30 seconds... then power back on.
6. The NSB should now be set to work at 48k (not 44.1k). Once the NSB is booted, allow the NSB and console to sync; blue light should appear when ready (it may take a little longer to sync on the initial change).