Flow monitor reports NTP under OpenVPN

Running version 8.300

I looked at the Flow Monitor for ALL interfaces

There was a lot of entries under OpenVPN - all for UDP/123.

Checked the NTP configuration and removed the us.pool.ntp.org entry (this resolves to 385 ip addresses).

Re-booted to see what happened.

Now the Flow Monitor for ALL shows 2 entries for OpenVPN - these correspond to the NTP servers I have configured.
time.nist.gov
time.windows.com

Sometimes time.nist.gov shows correctly under NTP.