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I can reproduce this after updating the OpenCode web UI to 1.15.9.
Environment:
OpenCode version: 1.15.9
Interface: web UI served by opencode serve on macOS
Browser: reproduced in normal browser session and in a clean headless Chromium/Playwright context
Regression context: this started after updating from 1.15.5 to 1.15.9
Steps to reproduce:
Open the OpenCode web UI.
Open any project.
Click the top-right Toggle file tree button.
Expected behavior:
The file tree/sidebar should visibly open and show the project directory listing.
Actual behavior:
The file tree does not visibly open/render. The UI still shows the empty editor state (Select a file to open, 0 Changes, All files) and no project file tree is visible.
Technical details from local repro:
The Toggle file tree button changes to aria-expanded="true" and has aria-controls="file-tree-panel".
The backend file API succeeds: GET /file?path=&directory=<project> returns 200 with the expected project directories and files.
I did not see failed network requests or console errors during the click.
This points to a frontend rendering/layout/state regression rather than the backend file listing failing.
I also noticed the sidebar Open project button can be covered/intercepted by the main overlay on the no-project screen, although the bottom Project: selector still works as a workaround. The file tree issue remains after a project is opened.
Activity
github-actions commentedon May 22, 2026
This issue doesn't fully meet our contributing guidelines.
What needs to be fixed:
Please edit this issue to address the above within 2 hours, or it will be automatically closed.
This issue might be a duplicate of existing issues. Please check:
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barefoot-strength commentedon May 22, 2026
I can reproduce this after updating the OpenCode web UI to
1.15.9.Environment:
1.15.9opencode serveon macOS1.15.5to1.15.9Steps to reproduce:
Toggle file treebutton.Expected behavior:
The file tree/sidebar should visibly open and show the project directory listing.
Actual behavior:
The file tree does not visibly open/render. The UI still shows the empty editor state (
Select a file to open,0 Changes,All files) and no project file tree is visible.Technical details from local repro:
Toggle file treebutton changes toaria-expanded="true"and hasaria-controls="file-tree-panel".GET /file?path=&directory=<project>returns200with the expected project directories and files.I also noticed the sidebar
Open projectbutton can be covered/intercepted by the main overlay on the no-project screen, although the bottomProject:selector still works as a workaround. The file tree issue remains after a project is opened.github-actions commentedon May 22, 2026
This issue has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.
Feel free to open a new issue that follows our issue templates.