Authorization removed when update ios


When I publish an update of my app into the app store it seems that permissions are removed.

So basically I installed my app and gave it the authorization for the camera for example (barecode scanner and camera). Then when updated my app launching camera is rejected because I do not have authorization. It seems that authorization has been removed.

Does anyone faced this issue?

What does that mean, what exactly is happening there?
What did you change with the update?

Sorry. I just re-read my message and it is ununderstandable.

Basically the scenario is the following:
User install version n on its iphone
It use camera and permission is granted

Version n+1 arrived as update
User click on camera but my app does not have the permission anymore.

So user has to go to parameter > My app > giver permission to camera

Hope it is better explained