Every couple of days, when I want to push updates to Bitbucket via Sourcetree, I get a "Could not read from remote repository." error.
To solve that I deed to delete my ssh key form my computer (Mac Pro) and my Bitbucket account and create a new one. Then I can push to remote until I try again a couple of days later. Then I have to replace the ssh keys again.
This started after I updated the Sourcetree app which is on Version3.2.1 (225) now and seems to be the current version.