Hi you all.
I have had a similar problem. I could upload smaller files like up to 5MB, however, as soon as the files got to big, the upload aborted after 7 minutes without any error message.
This helped me:
https://www.ads-software.com/support/topic/196777
I uploaded the file to my word tube upload folder via ftp and the thumbnail to my regular picture media center and than I just got back to Word tube and instead of trying to upload the file I did put the correct addresses at “URL for media”. This goes much faster anyway.
Hope I could help you.
Best,
Andrea