I am migrating Moodle 2.6 to Moodle 3.3 and came across few issues with Dropbox repository. It works flawlessly on old Moodle but caused some problems with new one. I thought I fixed them but now I stuck with pretty weird one .
I can upload everything - PDFs, JPGs, PNGs, DOCs - but only images (JPGs, PNGs) download correctly. All other files download as 0 Kb (empty) files. It's not the size - big 20MB JPGs download fine and few KB documents download empty 0 Kb.
Any idea why ?