Hi (update 31 Oct 16)
I have come across an interesting variant of this problem in Reports
The Reports module allows you to use an HTML visualizer to format reports see DNN Hero videos
There is a twist, you need to be a SuperUser to configure the module to choose a Data Source and the SQL to run (very sensible as an Admin could enter destuctive SQL or query tables they shouldn't) however there is an issue if you set an HTML visualizer when you come back you are presented with (like) 'you do not have permission to view..,'. If you make any change, not related, to the visualizer when you Update / Save it resets the file chosen, therefore not displaying the data in the correct format :-(.
The current solution is to have an administrator, who can see the Files and update them. However, the HTML visualizers are saved to that User, so if you have more than 1 Admin it might prove an issue!