Unexpected Overwrite Behavior When Typing Mid-Word in GitHub Copilot

[Sundeep-Chowdary]

Does this issue occur when all extensions are disabled?: No

• VS Code Version: 1.100.3
• GitHub Copilot Version: 1.330.0
• GitHub Copilot Chat Version: 0.27.3
• OS Version: Windows 11

Steps to Reproduce:

1. Type a word like happy.
2. Move the cursor between the "p" and "y".
3. Type a character (e.g., !).
4. Observe that the "y" is overwritten instead of the character being inserted.

Expected Behavior:

Characters should be inserted at the cursor position without deleting existing characters.

Actual Behavior:

Characters overwrite the ones ahead of the cursor, mimicking overwrite mode.

Additional Context:

This behavior occurs when GitHub Copilot is enabled. It does not happen in other editors like Microsoft 365 Copilot, where insert mode is preserved.

[vs-code-engineering]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.100.3. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!

[Sundeep-Chowdary]

Hi! Thanks for the quick response. I’ve just confirmed that I’m using the latest stable version of VS Code: * VS Code Version: 1.100.3 * GitHub Copilot Version: 1.330.0 * GitHub Copilot Chat Version: 0.27.3 * OS: Windows 11 The issue still persists with this setup. Let me know if I can provide a screen recording or any additional details! Thanks again, Sundeep A

…

________________________________ From: vs-code-engineering[bot] ***@***.***> Sent: Friday, June 6, 2025 11:30 PM To: microsoft/vscode ***@***.***> Cc: Sundeep A ***@***.***>; Author ***@***.***> Subject: Re: [microsoft/vscode] Unexpected Overwrite Behavior When Typing Mid-Word in GitHub Copilot (Issue #250885) [https://avatars.githubusercontent.com/in/281319?s=20&v=4]vs-code-engineering[bot] left a comment (microsoft/vscode#250885)<#250885 (comment)> Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.100.3. Please try upgrading to the latest version and checking whether this issue remains. Happy Coding! — Reply to this email directly, view it on GitHub<#250885 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BSW4EXMSF6HM7SI4Z4UCQVL3CHJMBAVCNFSM6AAAAAB6YUWIJCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDSNJQGAZTAMJXHE>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[aiday-mar]

Hi it looks like you have the overtype mode enabled. If you run the command editor.action.toggleOvertypeInsertMode do you see this issue disappear?

[vs-code-engineering]

This issue has been closed automatically because it needs more information and has not had recent activity. See also our issue reporting guidelines.

Happy Coding!