I'm using Domain Mapping to force https. Turns out, it's also blocking some of the buddypress functions, like adding friends and moving through the pages that list the site's users. I talked to Tyler and he told me the https seems to be affecting admin-ajax.php calls. I don't know if that can be related here, but I've also noticed that my search mechanism isn't working as well; for instance: there're no results for the word "test", and I have several accounts with term in it and there're many other occurrences of the word across the site, like a group named "test". By the way, the buddypress features (like adding friends) work without the https. Also, I've already tried the plugin SSL Insecure Content Fixer, but it didn't change anything. How do I solve this?
Right now, Domain Mapping is active (https is being forced) and the mu plugin admin-login-redirect is also there (it performs some redirects regarding wp admin login pages). Support access is active and I've sent my wp super-admin and FTP login credentials around 3 weeks ago with Vaughan's name at the subject field, in case you need to use it.