I have a feature which is enabled. Feature has a library and event receiver. The library is created when the feature is enabled on a site. The feature takes files submitted to this library, sends them to the Word Automation Service which then returns a PDF file.
It all works great including a Workflow I have attached to the list which deletes the Word document after 5 minutes because we only want PDF's in this library.
The part that doesn't work is anytime the Word Automation Service sends a file to this library, any workflows fail with an abrupt - Failed on Start.
Errors in the Workflow logs are:
Workflow [workflow name] was canceled by System Account [workflow name] failed to start