Hi Qlik,
If we use any thumbnail pics on the app - the reference path of that used thumbnail should appear somewhere on the Media library window. It can be in non editable mode but we can be able copy that link. This helps when we wanted to change to other thumbnail or locate the path and use in another app.
Also, if remove that it's been hard to find out where it was and what it was!
Hope this makes sense?
Thanks
SB