Hey Andrew Gilleran, thank you for posting this issue. I see that your case was resolved and it appeared to be due to the doc conversion servers that were down during the time you had issues.
I just wanted to circle back in case anyone else has experienced this issue and are looking for answers. If anyone experiences an issue with document conversion again, please submit a case so we can understand the scope of the issue.
It happens every so often. But is never consistent. By the time I raise a support case and they get to look at it, the issue has been resolved. Thanks.