New Bigfix Scanner site fail to gather

There is new Bigfix Scanner site. And all the scanner task change to the site.
But when I enable the site, it always show the error.

Unexpected exception during gather of site BigFix Scanner: class NoAuthorizedSignature (class X509VerifyError<20>)

Anyone occurred it, too?

You can refer to following KB article.

NoAuthorizedSignature (class X509VerifyError<20>)

If still facing problem, recommendation is to open case with HCL support.

Yes. I already did the link. And the issue still thereā€¦