Image disappeared when using 'Private'

We used workflow and file type is 'Private'.
1. Create node 1 upload picture(1) to image filed and save node 1 status to 'Draft'.
2. Create node 2 add picture(1) to Ckeditor by 'file listing' and save node 2 status to 'Published'.
3. View node 2 by Anonymous User. You can see node 2 page but can not see picture(1).
Except: You can see node 2 page and picture(1)