When I launch SourceTree and do anything (refresh remotes, push, pull, etc) I get a popup saying that "Login is required for: bitbucket.org" and I need to type in my password. This doesn't cause an error, but it doesn't connect to bitbucket and refresh my remotes either. It's as if it can't connect but there's no error explaining why.
I'm using SourceTree on a Windows 8 machine. I've tried logging in and out of bitbucket, rebooting, reinstalling SourceTree, updating embedded Git, changing my password, nothing works.