Opus 4.5 is suddenly useless

Bug Description
Opus 4.5 spent 2 5 hour sessions exhausting my budget and nothing works, I can share all session logs if needed

Environment Info

• Platform: linux
• Terminal: vscode
• Version: 2.0.65
• Feedback ID: 7565b6b7-0413-4e7a-8a02-e3010367e957

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /home/vincent/.local/share/claude/versions/2.0.65 (expected in multi-process scenarios)\n    at UvI (/$bunfs/root/claude:2594:1618)\n    at QAA (/$bunfs/root/claude:2594:1296)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-17T02:26:36.569Z"},{"error":"Error: 429 {\"type\":\"error\",\"error\":{\"type\":\"rate_limit_error\",\"message\":\"This request would exceed your account's rate limit. Please try again later.\"},\"request_id\":\"req_011CWBazZicguPJ33Xb7FU1V\"}\n    at generate (/$bunfs/root/claude:124:10636)\n    at makeRequest (/$bunfs/root/claude:811:5434)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-17T03:57:00.877Z"},{"error":"Error: 429 {\"type\":\"error\",\"error\":{\"type\":\"rate_limit_error\",\"message\":\"This request would exceed your account's rate limit. Please try again later.\"},\"request_id\":\"req_011CWBb3Ka9Rwc2tzBnbZBC1\"}\n    at generate (/$bunfs/root/claude:124:10636)\n    at makeRequest (/$bunfs/root/claude:811:5434)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-17T03:57:36.748Z"}]