PDF not being attached when using symlink

Hi,

I have changed the file structure of a multisite that makes use of this plugin. But it seems like it does not work when the uploads directory is a symlink even though I have defined the WPCF7_UPLOADS_TMP_DIR to a custom tmp directory (outside of the uploads folder).

File structure is as followed:

• wp-content
  • uploads (this is a symlink to a directory outside of the WordPress core files)
  • tmp (define('WPCF7_UPLOADS_TMP_DIR', WP_CONTENT_DIR . '/tmp/wpcf7_uploads');)

When changing the uploads directory to a static directory it works fine, soooo…. any idea why it does not work when the uploads is a symlink?

Note: cf7 file upload field works fine even when the uploads directory is a symlink.