@balazswmann Thank you for sharing the patch. I tried the above patch, and re...

@balazswmann Thank you for sharing the patch. I tried the above patch, and re-exported the configuration after saving the workflow form again, however still getting the following error on site-rebuild:

TypeError: Argument 1 passed to Drupal\workflow\Entity\WorkflowConfigTransition::setWorkflow() must be an instance of Drupal\workflow\Entity\Workflow, null given, called in modules/contrib/workflow/src/Entity/WorkflowConfigTransition.php on line 79 in modules/contrib/workflow/src/WorkflowTypeAttributeTrait.php on line 37 #0 modules/contrib/workflow/src/Entity/WorkflowConfigTransition.php(79): Drupal\workflow\Entity\WorkflowConfigTransition->setWorkflow(NULL)