[Bug] Unexpected automatic model switching to Opus

Bug Description
nothing related to model itself but it keeps switches models to opus. If it keep behaves like this, I cannot use claude code anymore. This will be very critical to anthropic

Environment Info

• Platform: win32
• Terminal: pycharm
• Version: 2.1.234
• Feedback ID: 35273b66-4a69-45b4-a632-f7dd94699388

Errors

[{"error":"TelemetrySafeError: VirtualMessageList: itemKeys/messages length desync (keys=438 messages=437 range=[369,438))\n    at Bpw (B:/~BUN/root/cli:23083:33891)\n    at kCh (B:/~BUN/root/cli:23083:26862)\n    at Bi (B:/~BUN/root/cli:1965:21371)\n    at la (B:/~BUN/root/cli:1965:40471)\n    at cu (B:/~BUN/root/cli:1965:51392)\n    at $he (B:/~BUN/root/cli:1965:89045)\n    at gwe (B:/~BUN/root/cli:1965:87993)\n    at Zne (B:/~BUN/root/cli:1965:87812)\n    at d1 (B:/~BUN/root/cli:1965:84077)\n    at st (B:/~BUN/root/cli:1965:6665)","timestamp":"2026-08-25T01:26:00.149Z"}]