Sitecore Quick Tip: Missing Analytics Resources
Missing analytics in Sitecore Experience Analytics? If you are receiving a certificate error, check out the following guide: Sitecore 9: xConnect Endpoint Communication… Certificates, Ports, Hosts Files/DNS, and More!
Sitecore also has the following article, if the certificates are working, that details how to surface interactions, evaluate analytics, Path Analyzer issues and more: How-to’s – Troubleshooting xDB data issues (sitecore.com)
Lastly, deep dive into xConnect with this collection of resources: Resources for Managing and Troubleshooting Sitecore xConnect