[Bug] Claude 3.5 Opus generates less grounded code than previous versions
Status Open
Reported on v2.1.284
Maintainer reply None cached
Activity 0 comments · opened Oct 9, 2026
Bug Description
"It seems that from opus 4.8-->5.5 it is grounding less the code stack than before"
Environment Info
- Platform: win32
- Terminal: null
- Version: 2.1.284
- Feedback ID: 18fcc377-d7d9-410a-a5c3-3ce27a462702
Errors
[{"error":"TelemetrySafeError: VirtualMessageList: itemKeys/messages length desync (keys=482 messages=480 range=[456,482))\n at ET (B:/~BUN/root/chunk-3t2qwkxv.js:24:28971)\n at Wc (B:/~BUN/root/chunk-3t2qwkxv.js:24:20182)\n at Zs (B:/~BUN/root/chunk-ek96p8kc.js:18:20331)\n at mu (B:/~BUN/root/chunk-ek96p8kc.js:18:38498)\n at Qh (B:/~BUN/root/chunk-ek96p8kc.js:18:84581)\n at yv (B:/~BUN/root/chunk-ek96p8kc.js:18:83581)\n at Lu (B:/~BUN/root/chunk-ek96p8kc.js:18:83410)\n at Kh (B:/~BUN/root/chunk-ek96p8kc.js:18:79934)\n at mt (B:/~BUN/root/chunk-ek96p8kc.js:18:6261)\n at ti (B:/~BUN/root/chunk-ek96p8kc.js:18:4792)","timestamp":"2026-10-01T06:50:24.493Z"}]