git pull not updating the files

The following order of commands helped me to solve git pull not updating:

remove .git folder

copy .git from other repo

now git checkout

Before Removing, You can try
git fetch --all 
git reset --hard origin/master

The outcome showed me that some file names were too long for git to pull them from my remote repository and hence the mismatch and incorrect builds occurred.

So I ran the following command in order to fix it and did a hard reset again.

  git config --system core.longpaths true