[GH-ISSUE #8264] While uploading files to a collection, Open WebUI (on Windows) crashes #53725

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GiteaMirror · 2026-05-05T15:12:42-05:00

GiteaMirror commented

2026-05-05 15:12:42 -05:00

Originally created by @daniporr on GitHub (Jan 2, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/8264

Bug Report

Installation Method

GitHub release

Environment

Open WebUI Version: v0.5.3
Ollama (if applicable): 0.5.4
Operating System: Windows 11

Confirmation:

I have read and followed all the instructions provided in the README.md.
I am on the latest version of both Open WebUI and Ollama.
I have included the browser console logs.
I have included the Docker container logs.
I have provided the exact steps to reproduce the bug in the "Steps to Reproduce" section below.

Expected Behavior:

When I add files to a Collection in Workspace/Knowledge, the files are added or an error is reported.

Actual Behavior:

Open WebUI crashes with the following error code: 0xc0000005.

Description

Bug Summary:

While uploading files to a collection, Open WebUI crashes.
It is worth noting that Ollama keeps running normally.

Reproduction Details

Steps to Reproduce:

run it on Windows (using the backend/start_windows.bat script; I cannot install WSL)
create a new collection
add some files

Additional Information

It is very weird that is not a specific file causing this issue.
I investigated it a bit and the same crash happens in all the following cases:

upload a folder in a collection, at the X file it crashes
if you restart it and try to upload the same folder again, it skips all the existing ones but at the same X file it crashes
if you restart it and try to upload just that X file, it crashes
if you restart it and try to upload other files (but not the X file), for some files it crashes for others it does not
- I cannot see any relation to the content or the size of the files that cause this crash vs. those that do not (for the same collection)
if you upload the X file into a newly created collection, it does not crashes
if you change the Chunk Size and/or the Chunk Overlap, you reset everything and you try to upload the same folder in a collection, it crashes at a different file
- depending on the new values of Chunk Size/Overlap, it crashes at "earlier" files (files that before were processed correctly) or "later" files (it process X correctly and also a few more, but then it crashes)

Originally created by @daniporr on GitHub (Jan 2, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/8264 # Bug Report ## Installation Method GitHub release ## Environment - **Open WebUI Version:** v0.5.3 - **Ollama (if applicable):** 0.5.4 - **Operating System:** Windows 11 **Confirmation:** - [x] I have read and followed all the instructions provided in the README.md. - [x] I am on the latest version of both Open WebUI and Ollama. - [ ] I have included the browser console logs. - [ ] I have included the Docker container logs. - [x] I have provided the exact steps to reproduce the bug in the "Steps to Reproduce" section below. ## Expected Behavior: When I add files to a Collection in Workspace/Knowledge, the files are added or an error is reported. ## Actual Behavior: Open WebUI crashes with the following error code: `0xc0000005`. ## Description **Bug Summary:** While uploading files to a collection, Open WebUI crashes. It is worth noting that Ollama keeps running normally. ## Reproduction Details **Steps to Reproduce:** - run it on Windows (using the `backend/start_windows.bat` script; I cannot install WSL) - create a new collection - add some files ## Additional Information It is very weird that is not a specific file causing this issue. I investigated it a bit and the same crash happens in all the following cases: - upload a folder in a collection, at the X file it crashes - if you restart it and try to upload the same folder again, it skips all the existing ones but at the same X file it crashes - if you restart it and try to upload just that X file, it crashes - if you restart it and try to upload other files (but not the X file), for some files it crashes for others it does not - I cannot see any relation to the content or the size of the files that cause this crash vs. those that do not (for the same collection) - if you upload the X file into a newly created collection, it **does not** crashes - if you change the Chunk Size and/or the Chunk Overlap, you reset everything and you try to upload the same folder in a collection, it crashes at a different file - depending on the new values of Chunk Size/Overlap, it crashes at "earlier" files (files that before were processed correctly) or "later" files (it process X correctly and also a few more, but then it crashes)

GiteaMirror closed this issue

2026-05-05 15:12:43 -05:00

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Reference: github-starred/open-webui#53725