For WDL questions, see the WDL specification and WDL docs.
For Cromwell questions, see the Cromwell docs and please post any issues on Github.
When Are Cromwell Timing Graphs Generated?
I noticed that sometimes a failed Cromwell workflow will not have a timing graph, but instead this:
My sense after seeing a few of these is that Cromwell first evaluates the workflow WDL and inputs before it starts making a timing graph, and if these evaluations fail, we won't see a timing graph. Is this correct?