I’m having the same problem with the latest version. Super annoying! No solutions for you, though. Just thought I’d let you know that you weren’t alone.
Edit: I think I figured it out
I’m pretty sure it’s an issue with cookies. I logged out, logged back in at https://www.mydomain.com, and changed the address to https://www.mydomain/whatever&preview=true
however, if I try mydomain.com WITHOUT the www, it doesn’t work ??
