The problem I'm having is that thumbnails are not being generated. Instead, text is being displayed - "view attachment ...." - here's an example:
I just found out it is also affecting the photo uploads in my Showcase plugin as well:
I've also run into issues rebuilding attachment thumbnails in Tools. I get time out errors and it ends up taking a LONG time to rebuild all 230k+ attachments. Last time I ran it though it fixed some of the attachment thumbnails, but apparently not all of them.
Any idea what I might do to fix this?