Build a project's WBS visually. Free, no sign-up.
yourWBS is a free web tool to build a project's Work Breakdown Structure visually. Automatic numbering, a linked WBS dictionary, progress per element and PDF export. No sign-up, nothing to install: your work stays in your browser.
Pace needs two or more snapshots. This launch has 1, so velocity and momentum read as unmeasured rather than zero.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.