Here is a list of known issues (and possible fixes) related to the Bluesound Node streamers (N130, N131, N132, N530).
In some cases, the Dirac Live iOS app need to be closed and restarted for the NODE device to be discovered.
The Master Output gain in Dirac Live does not reset to default low setting when the "Volume Calibration/Measurement Levels" page is entered.
Exported Dirac Live filters from one configuration are not deleted when switching to another one (2.0 <==> 2.1 setup).
If pops/clicks are heard while performing the measurements, a factory reset of the Node device might be needed.
Perceived audio level is lower when the Dirac filter enabled:
Volume sliders during volume calibration do not define the levels during the actual measurement process. You have to manually adjust the subwoofer level (on the Dirac Live Volume Calibration/Measurement Levels page), so it at least matches the levels of the L/R speakers (e.g.-20 dB).