Before a fix, a CAD-to-FEA shell pipeline left 190 damaged surface files open without saying so and wrongly welded 98 more, across a 2,212-file test set. The hexera branch adds a sewing ladder, catches faces written twice, and lets notes like 'stitch gaps up to 0.5 mm' set the limit. Afterwards: 0 silent, 0 wrongly welded.
Recurring agent failure issue in hexera-platform (hexera-core)
What engineers report
A recurring agent failure problem in hexera-platform (hexera-core) that mostly hits the mechanical designer.
Failure pattern: agent / silent failure
Analyst note
From the Grok pain-radar digests, Nov 10-11 2026 (Nov 10 8:41 AM ET through Nov 11 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-11: 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 hexera-platform (hexera-core).
Evidence
More recurring errors in hexera-platform (hexera-core)
- A platform permission bug (403s on every mesh pass, no actAs or image-pull grants) was reported to the user as a fault in their CAD ('two faces lie on top of each other'), after 39 minutes and a booked 961 GiB VM. The mesh size itself came from boss pockets cut exactly to the tube's inner radius, leaving zero-thickness skins.Verification · impact 74
- A STEP face-name reader segfaulted on CATIA V4 and Creo assemblies in a 237-assembly test, crashing the staging process and taking the whole CFD or FEA run down for a name lookup that is only a convenience.MCAD · impact 74
- Face-number zone ids collided across parts in 44 of 46 real multi-CAD assembly plans, so a fix aimed at one part's thin wall refined a different part's thick wall. On a bus door, W9 was both the 80 mm wall and the 5 mm glass, and the glass was left short.MCAD · impact 74
- Hexera staged an AutoCAD STEP assembly at 1/305 of its size after mishandling a FOOT unit declaration, with the thinnest wall read as 0.025 mm and two parts floating.MCAD · impact 74
- Inventor's inch spelling was unknown to the checker, which fell back to metres, so a 50 mm hub read as about 50 um and the mesher crashed with a numeric error; unit-less STEP files failed the same way.MCAD · impact 74
- Hexera staging crashed when native CAD code segfaulted inside the run's own process, losing the run each time.MCAD · impact 66
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.