# Fixed 31 bugs in one week, only to find just 5 root cause categories

- Source: Guyuehome
- Published: 2026-11-02T03:39:00.000Z
- RoboHot: https://robohot.news/en/items/dlnuub7jw1gaxeqr6h9cj63en
- Original: https://www.guyuehome.com/detail?id=2117098930773716993

## Summary

The 31 failures logged in the week before the competition, after deduplication, fall into 5 root cause categories: open-loop control, changes not taking effect, dead code, false feedback, and no attribution. Each root cause comes with real code and arithmetic reasoning, plus three actions you can follow directly.