I have the same exact problem. However, I can't click on "Already have subtitles for this video?" as I viewed the subs in the Amara subtitle software before working on them using my own software. So now when I click on Resume in my tasks pane, I am taken directly to the video and the original subs rather than my edited ones (which have definitely uploaded as I can see them when I click on Latest Draft in the tasks pane).
Can you help?
Then, for the TED team, there is also a support e-mail address: email@example.com .
I hope this works for you.