[Bug] Anthropic API Error: Empty text content blocks in messages

[PaoloDiBello]

Bug Description
⎿  API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages: text content blocks must be non-empty"},"request_id":"req_011CYHQrKZtUxh74x6HFmGoa"}

Environment Info

• Platform: win32
• Terminal: null
• Version: 2.1.39
• Feedback ID: e72d873b-7ee9-45ba-b550-7740b32e565b

Errors

[{"error":"Error\n    at <anonymous> (B:/~BUN/root/claude.exe:43:10685)\n    at emit (node:events:92:22)\n    at <anonymous> (B:/~BUN/root/claude.exe:42:5642)\n    at request (B:/~BUN/root/claude.exe:45:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:08:33.147Z"},{"error":"Error\n    at <anonymous> (B:/~BUN/root/claude.exe:43:10685)\n    at emit (node:events:92:22)\n    at <anonymous> (B:/~BUN/root/claude.exe:42:5642)\n    at request (B:/~BUN/root/claude.exe:45:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:08:51.886Z"},{"error":"Error: 1P event logging: 3 events failed to export (code=ECONNABORTED, timeout of 10000ms exceeded)\n    at queueFailedEvents (B:/~BUN/root/claude.exe:1909:2350)\n    at async doExport (B:/~BUN/root/claude.exe:1909:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:11:09.182Z"},{"error":"Error: {\"message\":\"Failed to export 3 events (code=ECONNABORTED, timeout of 10000ms exceeded)\",\"originalLine\":\"1909\",\"originalColumn\":\"1409\",\"line\":\"1909\",\"column\":\"1409\",\"sourceURL\":\"B:/~BUN/root/claude.exe\",\"stack\":\"Error: Failed to export 3 events (code=ECONNABORTED, timeout of 10000ms exceeded)\\n    at doExport (B:/~BUN/root/claude.exe:1909:1409)\\n    at processTicksAndRejections (native:7:39)\",\"name\":\"Error\"}\n    at error (B:/~BUN/root/claude.exe:1952:25028)\n    at <anonymous> (B:/~BUN/root/claude.exe:1904:19992)\n    at Jv1 (B:/~BUN/root/claude.exe:1904:20536)\n    at <anonymous> (B:/~BUN/root/claude.exe:1905:17366)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:11:09.183Z"},{"error":"Error: 1P event logging: 22 events failed to export (code=ECONNABORTED, timeout of 10000ms exceeded)\n    at queueFailedEvents (B:/~BUN/root/claude.exe:1909:2350)\n    at async doExport (B:/~BUN/root/claude.exe:1909:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:11:32.463Z"},{"error":"Error: {\"message\":\"Failed to export 22 events (code=ECONNABORTED, timeout of 10000ms exceeded)\",\"originalLine\":\"1909\",\"originalColumn\":\"1409\",\"line\":\"1909\",\"column\":\"1409\",\"sourceURL\":\"B:/~BUN/root/claude.exe\",\"stack\":\"Error: Failed to export 22 events (code=ECONNABORTED, timeout of 10000ms exceeded)\\n    at doExport (B:/~BUN/root/claude.exe:1909:1409)\\n    at processTicksAndRejections (native:7:39)\",\"name\":\"Error\"}\n    at error (B:/~BUN/root/claude.exe:1952:25028)\n    at <anonymous> (B:/~BUN/root/claude.exe:1904:19992)\n    at Jv1 (B:/~BUN/root/claude.exe:1904:20536)\n    at <anonymous> (B:/~BUN/root/claude.exe:1905:17366)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:11:32.463Z"},{"error":"Error\n    at <anonymous> (B:/~BUN/root/claude.exe:43:10685)\n    at emit (node:events:92:22)\n    at <anonymous> (B:/~BUN/root/claude.exe:42:5642)\n    at request (B:/~BUN/root/claude.exe:45:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:11:51.722Z"},{"error":"Error\n    at <anonymous> (B:/~BUN/root/claude.exe:43:10685)\n    at emit (node:events:92:22)\n    at <anonymous> (B:/~BUN/root/claude.exe:42:5642)\n    at request (B:/~BUN/root/claude.exe:45:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:12:21.599Z"},{"error":"Error: 1P event logging: 21 events failed to export (code=ECONNABORTED, timeout of 10000ms exceeded)\n    at queueFailedEvents (B:/~BUN/root/claude.exe:1909:2350)\n    at async doExport (B:/~BUN/root/claude.exe:1909:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T08:12:27.915Z"},{"error":"Error: {\"message\":\"Failed to export 21 events (code=ECONNABORTED, timeout of 10000ms exceeded)\",\"originalLine\":\"1909\",\"originalColumn\":\"1409\",\"line\":\"1909\",\"column\":\"1409\",\"sourceURL\":\"B:/~BUN/root/claude.exe\",\"stack\":\"Error: Failed to export 21 events (code=ECONNABORTED, timeout of 10000ms exceeded)\\n    at doExport (B:/~BUN/root/claude.exe:1909:1409)\\n    at processTicksAndRejections (native:7:39)\",\"name\":\"Error\"}\n    at error (B:/~BUN/root/claude.exe:1952:25028)\n    at <anonymous>…

Note: Content was truncated.

[github-actions]

Found 3 possible duplicate issues:

1. API Error 400: text content blocks must contain non-whitespace text #23440
2. API Error 400: text content blocks must contain non-whitespace text - conversation becomes permanently stuck #23390
3. [Bug] Anthropic API Error: Text content blocks must contain non-whitespace text #23369

This issue will be automatically closed as a duplicate in 3 days.

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[github-actions]

This issue has been automatically closed as a duplicate of #23440.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.