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Knowledge retrieval causes UUID insert error when iteration runs standalone #19291

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opened 2026-02-21 19:58:03 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 19:58:03 -05:00
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Originally created by @JosephFang03 on GitHub (Oct 14, 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

v1.9.0

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

I ran this iteration function separately within the workflow, and it consistently throws this error.
However, when I run the entire workflow, the error doesn’t occur.

Image Image

✔️ Expected Behavior

I hope that when I run this iteration function alone, there will be no error.

❌ Actual Behavior

When I run the iteration function alone, I get an error.

Originally created by @JosephFang03 on GitHub (Oct 14, 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 v1.9.0 ### Cloud or Self Hosted Self Hosted (Docker) ### Steps to reproduce I ran this iteration function separately within the workflow, and it consistently throws this error. However, when I run the entire workflow, the error doesn’t occur. <img width="654" height="389" alt="Image" src="https://github.com/user-attachments/assets/fc91f99a-dbb3-4af2-9753-7be695c2fc2c" /> <img width="484" height="496" alt="Image" src="https://github.com/user-attachments/assets/84145e6b-e151-4659-a287-7a9a5bedffce" /> ### ✔️ Expected Behavior I hope that when I run this iteration function alone, there will be no error. ### ❌ Actual Behavior When I run the iteration function alone, I get an error.
yindo added the 🐞 bug label 2026-02-21 19:58:03 -05:00
yindo closed this issue 2026-02-21 19:58:03 -05:00
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Reference: langgenius/dify#19291
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