Handling Errors and Warnings
If a step encounters an error, it stops executing and all steps that process output signals from that step also stop executing. If you change the configuration of the steps to correct the error or if the state of the project changes in such a way that the error corrects itself automatically, the step that returned the error starts executing again and clears its error. Subsequent steps that inherit data from the step also start executing again.
Warnings have no effect on the execution of the project. When a step returns a warning, the step continues to execute and provide signals to subsequent steps.