In a valve gear exam model, adding a 3 mm bore to an older die block renamed its outer face, and 3 mates lost their reference. Separately, editing the feature that made a face rotated a sketch on it, so the sheave's bore moved 90 degrees. The fix follows a renamed face by its recorded geometry. It is the old topological naming problem showing up in a new CAD tool.
Recurring agent failure issue in step-viewer (kothf)
What engineers report
A recurring agent failure problem in step-viewer (kothf) that mostly hits the mechanical designer.
Failure pattern: validation / geometry
Analyst note
From the Grok pain-radar digests, Nov 9-10 2026 (Nov 9 7:41 AM ET through Nov 10 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-10: issue/PR read; title and state confirmed.
What it costs a team
Modeled annual cost
$30,000
For a team of 5
Prototype delay
3 days
Modeled schedule slip per occurrence
Time lost
240 min
Per engineer per month, about 1 incidents
How the cost is modeled
240 min/month × 5 engineers × 12 months = 240 hours × $125/hour = $30,000
A modeled estimate with medium confidence. Swap in your own team size and loaded rate to size it for your team.
Engineering tools that address it
No engineering tool profile lists this error yet. Browse tools that connect to step-viewer (kothf).
Evidence
Sourced from public community reports. Costs and delays are modeled estimates, not measurements. Know a better source or a fix? Tell us at hello@productflo.io.