iOS 7 is prevented from uploading to Photo Stream by some apps

I have found that some apps such as LINE and Facebook Camera prevent iOS 7 from uploading photoos to my Photo Stream.

The phenominum is the followings:

1. Take some photos by camera app of iPhone.

2. Uploading the photos to LINE or Facebook by the apps.

3. These photos won't appear in my Photo Stream.

I turned off the Photo Stream in Preference and then turned on it.

However, the photos never appeared in my Photo Stream.

I don't think I had experienced this phenominun until I updated to iOS 7.

I guess it might be a bug of iOS 7.