No thumbnails in UploadWizard (Wikimedia Commons)
I am uploading some pictures using UploadWizzard on Wikimedia Commons. But as you can see on attached image there are no thumbnails. Thus I am unable nearly unable to follow with file descriptione etc.
When I uploded files there was a message under each of them "file uploaded, unable to generait thumbnail".
Version: unspecified
Severity: critical
Platform: PC
Attached: