Hi there!
We detected that this may be a bug report, so we’ve moved your post to the Bug Reports category.
To help us investigate and fix this faster, could you edit your original post to include the details from the template below?
Bug Report Template - Click to expand
Where does the bug appear (feature/product)?
- Editor, Tab & Chat (autocomplete, Composer, in-editor agent)
- Terminal & commands
- Models, pricing & API keys (availability, Auto/Max, BYOK/Bedrock)
- MCP & tools
- Cloud Agents & Automations (cursor.com/agents, scheduled/event)
- BugBot & Code Review
- Cursor CLI
- Cursor Mobile
- Remote (SSH / Dev Containers / WSL)
- Account, billing & login
- Something else…
Describe the Bug
A clear and concise description of what the bug is.
Steps to Reproduce
How can you reproduce this bug? We have a much better chance at fixing issues if we can reproduce them!
- …
- …
- …
Expected Behavior
What is meant to happen here that isn’t working correctly?
Screenshots / Screen Recordings
If applicable, attach images or videos (.jpg, .png, .gif, .mp4, .mov)
Operating System
- Windows 10/11
- MacOS
- Linux
Version Information
- For Cursor IDE: Menu → About Cursor → Copy
- For Cursor CLI: Run
agent aboutin your terminal
IDE:
Version: 2.xx.x
VSCode Version: 1.105.1
Commit: ......
CLI:
CLI Version 2026.01.17-d239e66
For AI issues: which model did you use?
Model name (e.g., Sonnet 4, Tab…)
For AI issues: add Request ID with privacy disabled
Request ID: f9a7046a-279b-47e5-ab48-6e8dc12daba1
For Background Agent issues, also post the ID: bc-…
Additional Information
Add any other context about the problem here.
Does this stop you from using Cursor?
- Yes - Cursor is unusable
- Sometimes - I can sometimes use Cursor
- No - Cursor works, but with this issue
The more details you provide, the easier it is for us to reproduce and fix the issue. Thanks!
Here are my details:
I am running the latest version: 3.17.21 (Universal)
My PC: Apple M1 Max
the rightside bar has been messing up with me for the past months.
I started noticing this layout bugs on a last update I made which shift Claude code from the rightsidebar to now be part of active-centered open files.
Hey, thanks for the report. From your screenshot, I can see a few empty panels took over the window, and the chat is squeezed into a narrow column on the left.
First, here’s how to get the layout back to normal:
- Close each empty panel using the small X in its corner, or open the Command Palette with
Cmd+Shift+Pand run Developer: Reload Window. - If the empty panels come back after reload, run View: Reset View Locations, then run Developer: Reload Window again.
Now about Claude Code. The fact that it moved from the right sidebar into the open files area is not something broken in your setup. After a recent update, the right panel is reserved for Cursor’s own agent UI, and extension panels like Claude Code can’t be dragged there anymore. This is expected behavior after the change.
You can move Claude Code next to the agent panel like this:
Cmd+Shift+P- View: Move View
- Select Claude Code
- Select Secondary Side Bar Entry
That should put it back in the usual spot and keep it there after restarts. More details and discussion are in this thread: Claude Code extension no longer appears in the right sidebar after Cursor 3.15.6 update
One honest note: on macOS, some users noticed that even after this, new Claude Code sessions still sometimes open as an editor tab. If you hit that, let me know and we can dig deeper.
Thanks for the prompt response. I believe I didn’t explain myself clearly on the first point. Those empty panels appear randomly after opening the IDE. When I click on the small “x” icon in the corner, it doesn’t do anything. (I have to click it multiple times for it to respond, or perhaps it closes some that are underneath.)
However, the real issue is that they appear out of nowhere.
Thanks for the second point; it really helped.