Ok awesome thanks for taking a look into this! The extension works when only the English filter is on, however with the spyware or social media filter on, the plugin stops working. In the log the two domains being blocked were platform.linkedin.com and csi.gstatic.com
This plugin displays the information of the recipients of emails in Gmail in the top-right corner of the page. When Adguard is enabled, some of the filters are blocking Rapportive from showing the user's info (which I think is pulled from LinkedIn).