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After the knowledge pipeline is created, the test runs successfully, but the import document embedding fails, prompting:attribute refresh operation cannot proceed #19739

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opened 2026-02-21 20:03:25 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:03:25 -05:00
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Originally created by @XYxuyue on GitHub (Oct 21, 2025).

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 ：）
  • Please do not modify this template :) and fill in all the required fields.

Dify version

1.9.1

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

After creating the knowledge pipeline, the test runs successfully, and the import document embedding fails, prompting:Instance <Document at 0x70c929553320> is not bound to a Session; attribute refresh operation cannot proceed (Background on this error at: https://sqlalche.me/e/20/bhk3)

Image

✔️ Expected Behavior

After creating the knowledge pipeline, the test runs successfully, and the import document embedding should run normally

❌ Actual Behavior

After creating the knowledge pipeline, the test runs successfully, and the import document embedding fails, prompting:Instance <Document at 0x70c929553320> is not bound to a Session; attribute refresh operation cannot proceed (Background on this error at: https://sqlalche.me/e/20/bhk3)

Image
Originally created by @XYxuyue on GitHub (Oct 21, 2025). ### Self Checks - [x] I have read the [Contributing Guide](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) and [Language Policy](https://github.com/langgenius/dify/issues/1542). - [x] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report, otherwise it will be closed. - [x] 【中文用户 & Non English User】请使用英语提交，否则会被关闭 ：） - [x] Please do not modify this template :) and fill in all the required fields. ### Dify version 1.9.1 ### Cloud or Self Hosted Self Hosted (Docker) ### Steps to reproduce After creating the knowledge pipeline, the test runs successfully, and the import document embedding fails, prompting:Instance <Document at 0x70c929553320> is not bound to a Session; attribute refresh operation cannot proceed (Background on this error at: https://sqlalche.me/e/20/bhk3) <img width="2553" height="955" alt="Image" src="https://github.com/user-attachments/assets/d94360f8-0502-487d-8e78-4f654a7b0bda" /> ### ✔️ Expected Behavior After creating the knowledge pipeline, the test runs successfully, and the import document embedding should run normally ### ❌ Actual Behavior After creating the knowledge pipeline, the test runs successfully, and the import document embedding fails, prompting:Instance <Document at 0x70c929553320> is not bound to a Session; attribute refresh operation cannot proceed (Background on this error at: https://sqlalche.me/e/20/bhk3) <img width="2553" height="955" alt="Image" src="https://github.com/user-attachments/assets/5c95e218-341a-43c4-bc5a-2d1fc75b4a6c" />
yindo added the 🐞 bug label 2026-02-21 20:03:25 -05:00
yindo closed this issue 2026-02-21 20:03:25 -05:00
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Reference: langgenius/dify#19739
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