Jeremy Davis's picture

However I'm not 100% sure whether it is an issue with a missing dependency, or whether it is actually a Canvas bug?

And the fact that all 3 of your test servers had the same issue doesn't actually help diagnose the problem I don't think. I find it highly unlikely that this would be caused by your VM environment.

Can you please post a link to the bug you posted on GitHub so I can watch it myself? Regardless it'd be great if you post back if/when you make any progress or get any good info. Thanks.