Uploading photos frequently failing

(Bug, Closed -> Fixed, Priority: High, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Photos
Summary: Anecdotally, it seems like when I am creating photos in my Vacation Photos Space, half the time it is uploading, getting to the "Processing..." stage, and then hanging. Notably, it seems to always succeed the second time I try. If things are deterministic, this might suggest that it is uploading the first time, but not reporting back?