TAB not working after installing Vim extension

Bug Reports
1

Describe the Bug

I installed the Vim extension (vscodevim), and TAB completion almost stopped working. It only suggests occasionally — at the beginning or at random times. When I remove the extension, everything works fine.
Is anyone using Vim for editing? How do you deal with this?

Steps to Reproduce

  1. Find and install the vscodevim extension
  2. Open a code file (I used C# (.cs))
  3. Enter Insert mode and try writing some code

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.1.6 (user setup)
VSCode Version: 1.96.2
Commit: 5b19bac7a947f54e4caa3eb7e4c5fbf832389850
Date: 2025-06-25T02:20:02.577Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.19045

Does this stop you from using Cursor

No - Cursor works, but with this issue