Got it. I've uploaded #8 but I'll leave the others so you can test to see if it works.
Open up the properties of one of the issues, and scroll all the way across to the right in the "Details" text box. There's a unicode character " " at the end of the text that's obviously causing some problems for the web service. Removing that fixes the problem.
Must be an artifact from the original source of the synopsis text. Not sure if there's a nice way for me to prevent that from happening - we might just have to be aware of it in future.