Just found that in my case it was the CKEditor for WordPress plugin.
Add media button now works, but when I go through and add files to a gallery and then click add gallery, it goes back to the page but doesn’t add anything
I’m not using the Comprehensive Google Map Plugi, so I guess it’s a case of dis-abling all plugins and see if that works, then add back one by one until it falls over again 🙁
The same problem here, although I hadn’t added the two plugins.
I’ve also tried switching to the 2014 theme, creating a new page, saving and re-opening, clearing cahce and cookies from browsers, Firefox, Chrome and IE10
Anyone know how to fix this as it’s strting to really become an issue
Thanks for the reply.
I changed to the twentyfourteen theme, it required updating before doing so, but the issue is the same.