If you figure this out I would be curious to know the answer as I think I have the same "issue". Not really an issue as you click once and then it is gone but indeed always better to avoid those calls.
For me it started to happen as soon as I started using a wildcard certificate instead of a SAN cert.
How many connectors do you have? Have you verified that the certificate you loaded for the Globalsign cert on the connectors as well?
This command can be run from the gateway-va or other va's, trying to verify certificate
Or from a machine that has openssl installed
OpenSSL> s_client -connect connector-hostname:443