[GH-ISSUE #17215] issue: No Scrollbar Visible on Chat Window (Up-Down) #18209

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GiteaMirror · 2026-04-20T00:25:21-05:00

GiteaMirror commented

2026-04-20 00:25:21 -05:00

Originally created by @bernd-sprenger on GitHub (Sep 5, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/17215

Check Existing Issues

I have searched the existing issues and discussions.
I am using the latest version of Open WebUI.

Installation Method

Git Clone

Open WebUI Version

v0.6.26

Ollama Version (if applicable)

No response

Operating System

Debian 13

Browser (if applicable)

Brave Edge on Windows

Confirmation

I have read and followed all instructions in README.md.
I am using 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 every relevant configuration, setting, and environment variable used in my setup.
I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
Start with the initial platform/version/OS and dependencies used,
Specify exact install/launch/configure commands,
List URLs visited, user input (incl. example values/emails/passwords if needed),
Describe all options and toggles enabled or changed,
Include any files or environmental changes,
Identify the expected and actual result at each stage,
Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

Having a up/down scrollbar on the chat window when it is acting on mouse wheel, of when it is clicked onto (ideally it would appear when the mouse hovers over the window).

Actual Behavior

Sometime the up/down scrollbar disappears, when you have clicked the left panel and then switch tabs in the browser and come back. The window can be scrolled with the mouse wheel. However to have the scrollbar visible again, you have to click into a code section, or the send message panel for it to reappear.

Steps to Reproduce

Just do a long chat, scroll somewhere in the middle of the chat, click the left panel, switch tabs in the browser and comback and scroll the chat window with the mouse wheel.

Logs & Screenshots

Additional Information

From the my perspective, a scrollbar should always be visible, when the mouse is hovering over the window, or any mouse interactions are done, such as click a button, use the scroll wheel or so.

In my opinon, on a 4K display the scrollbar should also be bigger and having higher contrast.

Thanks for your excellent work on Open-WebUi - I use it quite a lot!

Originally created by @bernd-sprenger on GitHub (Sep 5, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/17215 ### Check Existing Issues - [x] I have searched the existing issues and discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Git Clone ### Open WebUI Version v0.6.26 ### Ollama Version (if applicable) _No response_ ### Operating System Debian 13 ### Browser (if applicable) Brave Edge on Windows ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior Having a up/down scrollbar on the chat window when it is acting on mouse wheel, of when it is clicked onto (ideally it would appear when the mouse hovers over the window). ### Actual Behavior Sometime the up/down scrollbar disappears, when you have clicked the left panel and then switch tabs in the browser and come back. The window can be scrolled with the mouse wheel. However to have the scrollbar visible again, you have to click into a code section, or the send message panel for it to reappear. ### Steps to Reproduce Just do a long chat, scroll somewhere in the middle of the chat, click the left panel, switch tabs in the browser and comback and scroll the chat window with the mouse wheel. ### Logs & Screenshots <img width="1018" height="734" alt="Image" src="https://github.com/user-attachments/assets/cb955d1c-6981-4d0e-b76b-7fa4f0a0abf9" /> ### Additional Information From the my perspective, a scrollbar should always be visible, when the mouse is hovering over the window, or any mouse interactions are done, such as click a button, use the scroll wheel or so. In my opinon, on a 4K display the scrollbar should also be bigger and having higher contrast. Thanks for your excellent work on Open-WebUi - I use it quite a lot!

GiteaMirror added the bug label 2026-04-20 00:25:21 -05:00

GiteaMirror closed this issue

2026-04-20 00:25:22 -05:00

GiteaMirror commented

2026-04-20 00:25:23 -05:00

@tjbck commented on GitHub (Sep 5, 2025):

We're unable to reproduce, keep us updated!

@tjbck commented on GitHub (Sep 5, 2025): We're unable to reproduce, keep us updated!

GiteaMirror referenced this issue

2026-04-20 05:33:23 -05:00

[PR #18209] [CLOSED] Fix: Embedding and Reranker Models Not Working After JSON Config Import#17984 #24707

GiteaMirror referenced this issue