NextDNS Client - Detecting 3rd Party DNS

Hey there,

I'm trying to deploy the NextDNS client to some workstations, but it's throwing an error in the log:

ERROR Engine third party DNS filter detected on the system

We do have software that can do DNS or Web filtering, specifically FortiClient, however that portion is not installed or enabled.  Other than that I can't think of what could be causing this alert.  

Is there any way to get more verbose logging to see what or how it's detecting it?  Can we bypass the detection so that it can function?

Thanks!