Plugins revert to http

I am running a site that is all https. When I enable certain plugins gd-recaptcha, gd-buddypress, or enable the font awesome library in gd-review rating, my urls revert back to http which is causing browser errors.

I host with wpengine and have had them check the ssl redirect and they state that all pages and files are actively redirecting to ssl unless hardcoded.

Please advise.

Thanks
Here is the issue for the gd-review rating in my browser:
//Begin Error//
Mixed Content: The page at ‘https://www.infoseclist.com/’ was loaded over HTTPS, but requested an insecure stylesheet ‘http://www.infoseclist.com/wp-content/plugins/geodir_review_rating_manager/css/barrating.css?ver=4.4.1’. This request has been blocked; the content must be served over HTTPS.
//End Error//