BitDefender won't accept SSL Inspector as CA

We're trying to activate SSL Inspector and several clients are unable to connect with SSL sites. The apparent common factor is that BitDefender is not accepting the Untangle / Arista CA certificate, despite us having gone through the steps to install it as a trusted CA in the machines in question. The error page that appears is not Chrome's but something tagged with BitDefender.

Is there something I'm not aware of that will allow BitDefender to accept the CA downloaded from our firewall device?

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