I have been using my SourceTree/BitBucket setup for years without a problem. After the update to SourceTree 4.1.3 (239), I can no longer push to BitBucket. In addition, the attempt "never" ( I waited over 12 hours) times out and when I cancel the attempt to push, it fails without an error.
I have logged into the corresponding BitBucket account using the web browser, do not receive any errors and cannot see anything changed in the configuration.