Access to Files in a private group on the Napili template
|Knowledge Article Number||000240455|
|Description||Administrators or Salesforce users with “Create and Set Up Communities” permission who are not the members of the private group, can post and upload files into the private group on Communities with the Napili template, but they cannot see the files, what the members of the group uploaded.
The System Admin can see those files in Salesforce, under the Files | All Files tab.
|Resolution||This behaviour is working as designed. Files shared with private groups, require the user to be a member of the group, otherwise the user won't be able to see the group files, only the ones, what he uploaded to the group.
See the same behaviour described here regarding Content Document visibility via Report.