So QatQat, are you suggesting I should run:
chgrp -R feet /user/Common/DOCS
find /user/Common/DOCS -type f -print0 | xargs -0 chmod 664
find /user/Common/DOCS -type d -print0 | xargs -0 chmod g+s 775
If so, that's what I'll do.
I agree, I wish I knew what the cause of this is, so we could fix...