Version: 2.3.26 Cursor stopped autocompleting in Jupyter notebooks

[Alex_Zhao]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Works fine in .py file.
But not in .ipynb file. See screenshots. Tried multiple times, no matter I write an import line or simply prompt a function via a comment in a Notebook cell, it does not provide any autocompleting suggestions. Tried reinstall Cursor, clear cache, and reinstall Jupyter extesions.

Steps to Reproduce

Happens in any ipynb file

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.3.26
VSCode Version: 1.105.1
Commit: bdbdd3f2cf698f583c5cdd2a6dc0f5aec4ed5f90
Date: 2026-01-07T07:11:15.842Z (17 hrs ago)
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 21.6.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

[Alex_Zhao]

.py file works

Not .ipynb

[Colin]

Hey @Alex_Zhao !

Thanks for reporting this. We have an active incident we’re working through exactly about this. We’ll keep you updated.

[Colin]

Hey again!

This should be working now. Let us know if it isn’t. (It should have been working when I responded this morning as well, I just had out-of-date info!)