I login to bitbucket.org no problem via the Web site.
I use my exact same account with sourcetree and can't authenticate to push changes to the server.
I had to delete the passwd file to authenticate push / pull requests from SourceTree to BitBucket. Here's where I found my solution:
Here's what I did...
I deleted this file:
Then I simply attempted a push, signed in to bitbucket from a prompt, signed into a second prompt, then the push worked and I haven't had a problem since then.
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