Media version hashes dont match / media dir does not regenerate files

In order to elaborate further if it is an permission issue, can you tell us

  • the exact permissions and ownerships of the media folder?
  • under which user/group apache is running?
  • whether the apache user is part of your users primary group?
  • whether your user is part of the apache users primary group?
  • the umask which is valid for your user and the apache user?

Cheers!