NetSDR Settings - LNA, Mixer, VGA



I'm running the Version 3 Feb 21 2017 Preview, 64 bit with my RFSpace NetSDR. LNA, Mixer, and VGA settings do not appear to be functioning. RF Gain does. 

Is this "normal" or am I missing something? I know it's a preview so I'm guessing it's the former and not the latter. Don't see the need for a screenshot in this case; other than this the software seems to be working beautifully with this SDR. 



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