Question regarding Facebook plugin

I’ve created a sharing function to share link to users’ wall and it works but I found that only me can see that post !! I’ve checked that post and found that it has already been set to public. So this makes me confused. Could anyone tell me how to fix this issue. Thanks for incoming advice.

PS. I use the publish_actions to post to users’ timeline.

When you first allowed the app to post on your wall, did you allowed it to Public" or “Friends only” . I believe the privacy settings of app and post are differents ? (I know you just said it has already been set to public, but I’m not sure if you’re talking about the post privacy, or the “app privacy”).

Is the Facebook App already published ? If not, only allowed testers can see your posts.

When you first allowed the app to post on your wall, did you allowed it to Public" or “Friends only” . I believe the privacy settings of app and post are differents ? (I know you just said it has already been set to public, but I’m not sure if you’re talking about the post privacy, or the “app privacy”).

Is the Facebook App already published ? If not, only allowed testers can see your posts.