Are you in "NSX Assessment Mode” or “Full Product Evaluation” mode?
In my experiences, data collection would take around 2 hours and to generate report you would need to wait at least 24 hours.
If you would like to review your installation process, you can check this blog post: vRealize Network Insight ( vRNI ) 3.0- How to Install & Configure - VMware Cloud Management
or the official vRealize Network Insight Installation GuideBayu Wibowo | vExpert NSX, VCIX6-DCV/NV, Cisco Champion, AWS-SAA
Author of VMware NSX Cookbook http://bit.ly/NSXCookbook
https://nz.linkedin.com/in/bayupw | twitter @bayupw
1. Could you check the health of your both appliances :
For instance, a simple test would be to log into your Platform and Proxy with the user "consoleuser" and password "ark1nc0ns0l3" then run the command "show-service-status".
What does that command show you on both VMs ?
2. How are the state of the data sources you added ? (vCenter + NSX Manager)
Could you check the last time data has been collected from the UI ? (In the settings, under data sources)
3. Do you have VMtools installed for your VMs ?
I would be glad to do a WebEX with you to check your deployment if needed .