Answer:

This issue can have several causes. Some possible solutions are:

1. Check that the module paths are set correctly in the production environment.

2. Check that the Puppet configuration files (puppet.conf) are configured correctly.

3. Make sure that the production environment is defined in the Puppet server.

4. Check that the module folder permissions are set correctly.

5. Check the Puppet logs for any hidden errors.

6. Make sure that the manifest files in the production environment are written correctly.

It is recommended to carefully review your Puppet and environment settings for more accuracy.