Have you tried/can you try exporting v5 instead of v9?
When you are looking at NTA data, have you chosen both ingress and egress data to be displayed?
I would suggest that you verify your interface for configured speed. You can check if the interface is set to the proper speed. Secondly does the Sonicwall have settings on how to delay or wait for a certain time before exporting flows. Do you have a sample of this is configured?
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