This holds the numeric error code from the last remote operation performed during this specific Image object's overall FSM run. This is the run-level counterpart to the per-transition remote error code on the Image object, capturing the error that ultimately caused this particular image's processing workflow to fail even after earlier stages succeeded. A nonzero value here on an image that got most of the way through validation points to a late-stage remote failure, such as a peer fabric interconnect rejecting the final registration step.