Problem: During Assignment feedback, when uploading an image in the feedback comments editor, the file picker does not appear - particularly, the 'Browse Repositories' button. Only the URL box shows, as shown in attached screen shot.
Is this as designed? For me this is a bug. Unless the file picker shows I cannot pick a file to upload. Any help on this issue will be gratefully accepted.
Moodle version: 3.3.2, running on Ubuntu 16.04 on a VPS