Internal file links: "unable to view file"

I have problems with internal file links when I e.g.:

  • Share a folder with a group
  • create an Excel file in the folder, for example (happens also with word, ppt, txt,…)
  • create a direct file link via, share symbol on the file, internal link → this does not work → error: “unable to view file”
  • but the user has permissions to that file/folder, he is in the right group
  • on the other hand: open the file via, shared with my groups, folder, file, copy link from browser address bar → this direct link to the file works