Good point. So here’s what happens – I take a post (create a new one, or take an old one) click “Add Media”, select the picture, click “Insert into Post” and nothing happens…that’s the broken part.
I’ve also tried adding the image independently and then “attaching” it to a post (you do this in the Media section and click “Attach” under the “Uploaded to” column). Again, nothing happens.
If I go to settings and disable the editor integration then everything works again. It seems like a javascript issue if I had to guess. What else would be useful to know about my environment?
Nevermind on b). You can just use the shortcode, right? That’s easy enough.
