[Bug] Unexpected File Modification Error During Update Operation

Bug Description
I keep getting this error: ● Update(test-edit.txt)
⎿  Error: File has been unexpectedly modified. Read it again before attempting to write it.

I never had such issues before, it seemed to happen with the latest updates. I have debugged and tried all possible solutions, but even according to Claude Code, this seems to be an internal issue directly related to Claude Code.

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 1.0.113
• Feedback ID: a5cbfc22-9c61-4e73-bf1f-d3afa8babc19

Errors

[{"error":"Error: File has been unexpectedly modified. Read it again before attempting to write it.\n    at Object.call (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1901:782)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async XZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:20655)\n    at async s$B (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:17150)\n    at async WZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:16013)\n    at async YZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:15550)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:12654)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:13502)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:13502)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:13502)","timestamp":"2025-09-14T17:18:44.124Z"},{"error":"Error: Request was aborted.\n    at mT.makeRequest (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1010:3864)\n    at processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at runNextTicks (node:internal/process/task_queues:69:3)\n    at process.processTimers (node:internal/timers:520:9)","timestamp":"2025-09-14T17:18:45.796Z"},{"error":"Error: File has been unexpectedly modified. Read it again before attempting to write it.\n    at Object.call (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1901:782)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async XZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:20655)\n    at async s$B (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:17150)\n    at async WZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:16013)\n    at async YZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:15550)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:12654)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:13502)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:13502)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:13502)","timestamp":"2025-09-14T17:19:31.610Z"},{"error":"Error: File has been unexpectedly modified. Read it again before attempting to write it.\n    at Object.call (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1902:3378)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async XZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:20655)\n    at async s$B (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:17150)\n    at async WZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:16013)\n    at async YZ5 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:15550)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:12654)\n    at async f$ (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3274:13502)\n    at async t9 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3638:29050)\n    at async l8 (file:///C:/Users/Florian/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3638:29986)","timestamp":"2025-09-14T17:20:04.809Z"},{"error":"Error: File has been unexpectedly modified. Read it ag

Note: Error logs were truncated.