CB Gallery 3 : Issue with "main gallery" ( all photos)

Hi !
I have an issue with the new feature which allow to display photos of all users in a flat way ( see topic  CB Gallery 3.0: Search in albums from all users ?  ) and i prefer to open a new topic.

When I am connected as  superadmin I have all photos displayed - that's OK
When I am connected as registered , I should have also all photos but I get only some of them without any logic ( no specific album, no specific user)

I tried with 3 test users ( the site is in development) - the total of photos is 45 . User1 get 34 , User2 get 31, User 3 get 28 . 

I do not find the reason.

Edit : more statistics.... 8 published photos are never displayed ( except for superadmin) , 28 always displayed, 9 are in between.... It seems independant of user owner of album, of album and of privacy

Unpublished media that doesn't belong to the user won't be visible. Media with privacy settings that the viewing user doesn't have permission for won't be visible. Same for album privacy and the Gallery tab itself privacy. The server side aggregation will remove those and it will try to fill up the remaining paging slots with new media if it can, but it will give up eventually. That is all working as expected.

Thank you Kyle. I posted about my issue because the photos are all published with no particular privacy setting on photos,albums or gallery tabs.

So, i do not know in which direction a can test and find the root cause