Thank you for that information. It is almost impossible to find out where to submit a ticket, I always end up in the Community questions. Do you know how I can submit? 

Since Adobe took over Workfront, it seems we’ve lost the ability to upload Animated GIFs for proofing. Previously, we could play the GIF and pause it at any point to add comments, but that’s no longer possible. Now, I just get the "Proof failed to generate" error. I came across a thread from 01/22/2...

I added a comment a few weeks ago, and still nothing. I just tried uploading another GIF, and it looks like it's going to upload, as the thumbnail preview image shows momentarily, but then the thumbnail image goes blank, and you get the red "Proof failed to generate". Do we know if there is a fix fo...

As of today I still am unable to upload and proof GIFs in Workfront. This has been happening for over a year now. Does support have a fix for this yet?