Using "Error Pipeline": JSON Formatter fails, error-pipeline NOT executed (FEATURE?)

Hi SL gurus!

Pipeline got Error Pipeline defined in properties(for logging/alerting).
When forcing an error in e.g. Mapper, error-pipeline gets called at some mysterious point and main pipeline gets Completed(i wonder why, as it does not stop with Failed)
BUT, when forcing error in a JSON Formatter (wrong Content), error-pipeline does not receive any error, main pipeline gets Failed and error-pipeline gets Stopped.
Why does JSON Formatter behave differently? Not providing JSON error structure to the error-pipeline and main pipeline gets Failed status here(at Mapper not)? FEATURE?

Simon :slight_smile: :smile: