Hey,
I have an app that have things called “Groups”, the user creator of that group can invite other users to that group. Inside the group, any user that was invited can add a file and only the users from that group can view the file (Make file private and attach the file to Current page group. I also have the privacy rules configured.
The problem is that anyone with the link of the file can view it for 5 minutes after it was uploaded. When someone tires to see the file with the link after 5 minutes, it shows sometimes this error,
or this one
How can I make the file really private?
Thanks in advance 
