This is a known issue affecting VMware NSX Data Center 6.4.6.
This issue is resolved in VMware NSX Data Center for vSphere 6.4.8, available at
VMware Downloads .
Workaround:
To work around this issue, contact VMware Support and file a Support Request (refer to KB article "How to file a Support Request in Customer Connect" https://kb.vmware.com/s/article/2006985).