I have a large workflow that creates as many as 42 Flexi-Tasks simultaneously using Parallel "Run If" actions. The FlexiTask forms are customized using InfoPath.
The workflow is started by a different workflow and returns values using Set Value in the called workflow.
The workflow has been publishing with no issues until I added a minor change to each branch in the Parallel logic. I now get a "12019: Unknown" error with no additional information.
Our "UserDefinedWorkflowMaximumComplexity" SharePoint 2013 farm setting is set to 24000.