dify - 💡(How to fix) Fix Knowledge Pipeline fails to ingest Q&A Processor output into Knowledge Base (no error shown) [1 comments, 2 participants]

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langgenius/dify#35378Fetched 2026-04-18 05:57:57
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Error Message

  • No explicit error message is displayed

Root Cause

Additional context

  • The issue reproduces even when using the official template(Simple Q&A)
  • It also occurs with minimal input data
  • This suggests the problem is unlikely caused by user input format
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Self Checks

  • I have read the Contributing Guide and Language Policy.
  • This is only for bug report, if you would like to ask a question, please head to Discussions.
  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report, otherwise it will be closed.
  • 【中文用户 & Non English User】请使用英语提交,否则会被关闭 :)
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Dify version

1.13.3

Cloud or Self Hosted

Cloud

Steps to reproduce

  1. Create a Knowledge Pipeline using the official template(Simple Q&A)
  2. Use the Q&A Processor node to generate Q&A pairs
  3. Connect the Q&A Processor output to the Knowledge Base node
  4. Run the pipeline

✔️ Expected Behavior

The Knowledge Base node should successfully ingest the processed Q&A pairs and create documents in the dataset.

❌ Actual Behavior

  • The Knowledge Base node does not ingest the data
  • No explicit error message is displayed
  • The pipeline appears to silently fail
<img width="483" height="748" alt="Image" src="https://github.com/user-attachments/assets/97a2c694-ee37-499e-91e3-fa574fceebb9" /> <img width="474" height="747" alt="Image" src="https://github.com/user-attachments/assets/6722cf09-887d-447a-812b-0efd6ce1e052" />

Additional context

  • The issue reproduces even when using the official template(Simple Q&A)
  • It also occurs with minimal input data
  • This suggests the problem is unlikely caused by user input format

extent analysis

TL;DR

The Knowledge Base node in the Dify pipeline may be failing due to an issue with the Q&A Processor node's output or the connection between the nodes, and verifying the node configurations and data flow is necessary to identify the root cause.

Guidance

  • Review the Q&A Processor node's configuration to ensure it is generating the expected Q&A pairs and output format.
  • Check the connection between the Q&A Processor node and the Knowledge Base node to verify that the data is being passed correctly.
  • Inspect the pipeline's data flow to identify any potential issues or bottlenecks that could be causing the Knowledge Base node to fail silently.
  • Consider adding logging or debugging statements to the pipeline to capture more detailed error information.

Example

No code snippet is provided as the issue does not contain sufficient technical details to create a relevant example.

Notes

The issue may be specific to the Dify version 1.13.3 or the Cloud hosting environment, and further investigation is needed to determine the root cause.

Recommendation

Apply workaround: Verify the node configurations and data flow to identify the root cause, as the issue may be related to a specific node or connection in the pipeline.

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dify - 💡(How to fix) Fix Knowledge Pipeline fails to ingest Q&A Processor output into Knowledge Base (no error shown) [1 comments, 2 participants]