Notice: Undefined index: data in content_storage()

Fresh install of Drupal 6.22 + cck 2.9 and filefield 3.10

new content-type with one filefield defined.

• Upload works normal, file is saved to its defined path correctly.
• content_field_FIELD table has the record of the uploaded file except with the missing field_file_data column value.
• files table has full record of the uploaded file.

But I receive this error message and I don't see the file in the $node object.
Notice: Undefined index: data in content_storage() (line 1073 of /var/www/sites/all/modules/cck/content.module).

I never had this problem before and none of the issue topics I found has the solution or the exact problem in that matter.

Only difference, between this test server (with the problem) and other servers (no problems) I worked on so far, is this one is built on NGINX+APC+memcached+Varnish instead of the classic LAMP stack. I am not even sure if it is nginx based problem, since every other instance of vhosts work fine.

Btw, the core upload module works just fine, with no issue or error.

Has anyone experienced this issue?

Thanks,