[Bug] Anthropic API Error: Cannot modify thinking blocks in assistant messages

Bug Description
I got this error: API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messag
es.49.content.1: thinking or redacted_thinking blocks in the latest assistant
message cannot be modified. These blocks must remain as they were in the original
response."},"request_id":"req_011CW7CvXh8VFKzHzwAjLwPu"}

Environment Info

• Platform: linux
• Terminal: konsole
• Version: 2.0.69
• Feedback ID: db115c9c-f63c-4280-9c9c-de011679ac4e

Errors

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.49.content.1: `thinking` or `redacted_thinking` blocks in the latest assistant message cannot be modified. These blocks must remain as they were in the original response.\"},\"request_id\":\"req_011CW7CvXh8VFKzHzwAjLwPu\"}\n    at I9.generate (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:458:10379)\n    at pR.makeStatusError (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:795:2195)\n    at pR.makeRequest (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:795:5419)\n    at process.processTicksAndRejections (node:internal/process/task_queues:103:5)\n    at async feA.model (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:11207)\n    at async feA (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1220:18703)\n    at async xg2 (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:11361)\n    at async file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:3787\n    at async yd1 (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:945:2037)\n    at async dYA (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:3757)","timestamp":"2025-12-14T20:25:12.356Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.49.content.1: `thinking` or `redacted_thinking` blocks in the latest assistant message cannot be modified. These blocks must remain as they were in the original response.\"},\"request_id\":\"req_011CW7Cvf3ekhXvnCgZgDW28\"}\n    at I9.generate (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:458:10379)\n    at pR.makeStatusError (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:795:2195)\n    at pR.makeRequest (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:795:5419)\n    at process.processTicksAndRejections (node:internal/process/task_queues:103:5)\n    at async feA.model (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:11207)\n    at async feA (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1220:18703)\n    at async xg2 (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:11361)\n    at async file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:3787\n    at async yd1 (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:945:2037)\n    at async dYA (file:///home/tony/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4235:3757)","timestamp":"2025-12-14T20:25:14.371Z"}]