I am running both Hummingbird and Defender on a test site, and trying to experiment test a market purchased Buddypress theme and installation.
Last evening I installed Wordpress with a free SSL Certificate provided to me by BlueHost, and installed wordpress with HTTPS as part of the Site URL.
After installing the theme and WPMU, and a day of testing, i found that the Site URL had been written to HTTP instead of HTTPS - which is disturbing
I do not want to use WPMU CDN as that makes the content mixed for the site. Can you please confirm what could be cause the Site URL to be re-written?