title: Git SSH issue: Terminal works fine, but all GUI clients fail
body: <p>So, I'm having this issue with git &amp; Github where things work as expected when I use the terminal however tying to do anything from Git GUI Clients like the GitHub desktop app, SourceTree, Fork gives me the  <em>Permission denied (publickey)</em> issue. </p>
  
  <p>Even trying out commands like <code>ssh -T git@github.com</code> in the terminal, works as expected. Here's a screenshot of my Github Account settings from Fork: As you can see, it looks like even my SSH key has been configured correctly &amp; seems to be recognized. I want to avoid the process of generating a new SSH key and setting it up in GitHub unless there's literally no other option. </p>
  
  <p><a href="https://i.stack.imgur.com/0fofD.png" rel="noreferrer"><img src="https://i.stack.imgur.com/0fofD.png" alt="enter image description here"></a></p>