exact scenario:

i have a task_1, which runs successfully with MyParam=['111'] i have a pipeline controller which runs successfully with task_1 as a step_1
If i use parameter_override for step_1 with value MyParam=999 (yes, not a dict), and run the pipeline, it fails (outputs this error in console logs), then reuses the ['111'] value and completes successfully. And i want it to fail completely, not reuse the safe default historic value

hope it clarifies