We are researching this issue for your. I was able import a few photos from Revel into Photoshop Elements 11. When I did export a photo to a library I did see the upload process stall at 9% too but it did finally go thru. If you cancel the upload can you try just upload one picture to see if it will stall at 9% and as it should eventually upload. I will have to find out why that happens.
Please log in to Adoberevel.com to see if the image ever did upload. If it did not try to upload pictures in Adoberevel.com to see if that works.
We have seen a few users have the same problem as you are experiencing.
Let me know if you can upload at all yet