Welcome to the Centrify Express community.
Can you please provide us with this information:
- Operating System and version
- Version of Centrify Express for UNIX/Linux or Mac (adinfo -v)
Is this happening on an individual system (or class or systems) or in all systems?
Keep in mind that with the popularity of DevOps solutions like Chef or Puppet, it's possible to have those solutions revert back some system files to a particular state.
R.P