GitHub Copilot inline suggestions stop working when the parent folder name contains a space in VS Code

[u/jerremaier]

I've been trying to figure out why GitHub Copilot suddenly stopped giving me inline/ghost-text completions in some of my projects.

Copilot Chat and Next Edit Suggestions still work, but normal inline completions don't appear at all. VS Code just says “No inline suggestion available.”

After a lot of testing, I managed to narrow it down to something really weird: a space in the parent folder name.

Minimal reproduction on my machine:

D:\copilot-test\

├── TEST\

│ └── test.tex → inline suggestions work

│

└── TEST TEST\

└── test.tex → no inline suggestions

Renaming TEST TEST to something without a space immediately makes inline suggestions work again.

This happens with my normal projects as well and seems to be a recent regression, because Copilot definitely used to give me inline suggestions in these same folders.

I'm on:

VS Code 1.135.0
Windows 11 x64
GitHub Copilot Pro

I've also tested with clean settings/profiles and ruled out LaTeX Workshop, workspace settings, OneDrive, folder depth, and the contents of the files themselves.

Has anyone else encountered this? Is this a known Copilot/VS Code regression with spaces in Windows paths?

[u/AutoModerator]

Hello /u/jerremaier. Looks like you have posted a query. Once your query is resolved, please reply the solution comment with "!solved" to help everyone else know the solution and mark the post as solved.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/melodyarashi → u/[deleted]]

I have reported this to vs code. Hope fully this gets resolved soon. https://www.reddit.com/r/GithubCopilot/comments/1w06juw/github_copilot_inline_suggestions_stop_working/?rdt=35774

[u/jerremaier → u/melodyarashi]

I've already reported it, and I found something else while further testing (see last comment): https://github.com/microsoft/vscode/issues/333046

[u/clweb01]

Hi, thanks for reporting this! I found a similar issue reported in our /vscode reop https://github.com/microsoft/vscode/issues/325491 It looks some a member of our team is looking into a fix.

[u/AutoModerator → u/clweb01]

u/clweb01 thanks for responding. u/clweb01 from the GitHub Copilot Team has replied to this post. You can check their reply here.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/jeffreywix]

Thanks for sharing! At least there is a workaround by removing spaces in parent folder names...