Thanks John,
I've added a few more files into the dropbox link for you to have a look at. Hopefully they are the ones you requested. Let me know if you need any more.
I think that the submission currently stuck in the queue is from a course which had its name changed around about the same time that turnitin stopped working. From what I have read earlier in this thread I'm starting to wonder if this upset the sync between Moodle classes and those on the Turnitinserver?? The course probably even has a different course ID related to LDAP enrolments compared to the previous academic year (I didn't make this change - I've only just discovered it and I'm not so happy about it tbh!).
I've also noticed that a lot of our teachers are re-using old assignments from previous years by simply changing the opening and closing dates (and maybe some other details). Could this have caused problems? Is it considered better practice to use a turnitin assignment only once?
Right now we'd be happy just to clear all items stuck in the queue and start again. I'm concerned that clearing the immediate stuck item will just uncover more errors that will make it stick again (unless updates to the plugin will override this even for submissions submitted before we updated to the latest version of the plugin).
Thanks for your help
Mike