I have reported this issue and asked for something concrete to tell our faculty when they report the issue. Here's what I got:
"Thank you for contacting Canvas Support in regards to the Crocodoc submission not rendering in Canvas. Currently what is occurring, is Crocodoc rendering will sometimes 'queue' submissions, on their server, for rendering during high traffic hours. As a result submissions will sometimes get stuck during this processing and never transfer back to Canvas.
You mentioned hopefully something more specific than a "Instructure is looking into this" so I've reached out to our engineers and they've at the possibility of an update where we can implement a Crocodoc queue system from our side, rather than relying on theirs. That way we have better control over how many submissions are sent to Crocodoc so it doesn't get overloaded on their side. We don't have any set dates for when this change can occur, so I apologize I cannot provide that at this time."
I was also assured that re-submitting would work; I assume there's a caveat that this is the solution only as long as it was the processing queue causing the issue.
So, huge grain of salt: there's a possibility of a fix on Canvas's side, at some point. But I just thought I'd share what I'd gotten from support.
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.