After committing and pushing latest changes to remote branch there's a new un-staged files

Haziq Fiqri

Hi may I know why every time I commit and push my latest changes to remote branch, after successfully pushing the changes there's new un-staged files that source tree retrieve from the remote branch which is the same existed in my local branch but it's un-staged. Kind of annoying to discard everything and sometimes I would forget which file that was truly un-staged from my local and not fetched from the remote branch.

Methods I tried to resolved: 
https://confluence.atlassian.com/sourcetreekb/how-to-wipe-sourcetree-preferences-412484640.html