Sachsm,
I see that you are using a NSV Queue for transmitting Commands to the RT target, and sending back an acknowledge message. I've read in a few places that Network Streams or standard TCP functions are preferred/more reliable for this sort of messaging system
(ex: https://decibel.ni.com/content/docs/DOC-15008)
I'm just curious why you chose NSVs, and how have they worked out/have you experienced problems with them in this scenario.
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LV 6.1 to 2015 SP1