Unable to use reposync to write to a virtualbox shared folder

I am running RHEL8 in a virtualbox trying to run reposync to store into a shared folder (on a windows host)

I get the following error:

Error: Cannot rename directory "/repository/rhel8/baseos/rhel-8-for-x86_64-baseos-rpms/tmpdir.sZIHje/repodata" to "/repository/rhel8/baseos/rhel-8-for-x86_64-baseos-rpms/repodata": cannot create directory /repository/rhel8/baseos/rhel-8-for-x86_64-baseos-rpms/repodata: File exists

If I try using 'mv' in the shell, I don't get any error.