Sometimes when you work with git, you don’t find all the remote branches.
Even after using git fetch they do not appear.
fetch git
it is very likely that the origin of the fetch is wrong. We can see, for example, that here only the master branch is updated.
$ git config --get remote.origin.fetch 'refs/heads/master:refs/remotes/origin/master
To fix it, just use a wildcard in the configuration
git config remote.origin.fetch