Review the /var/netwitness/license-server/license-server.log to verify that there are not any additional conditions that would cause the license to be out of compliance.
If all is well, logon to the SA head unit (node-0). Connect to mongo database, drop the license compliance document.
mongo admin -u deploy_admin -p use license-server
show collections db.usageCompliance.find(); (the document will reflect status in the License usage page.
This KB article only applies to condition in which there has not been any license violations during the grace period. Or if the system is in constant state of license limit usage, you will still see the yellow banner.