More stupid Twitter card tricks @manton. The crawler is only fetching images for posts created since whatever change got it going again. I was using Ulysses to re-publish some of the posts I wanted to drop into a thread so I would get proper cards. Success. Then today I thought I'd try manipulating the date and time property. Changing it for the already published post did nothing so I deleted the original post, went back to Ulysses, and tried re-publishing with it backdated. Total success … even with what I think is an identical URL.