Strange issue of VSCode, at times, uploading lot of data after it is closed

22 August 2025

I noticed that at times, on exiting VSCode (and no other VSCode editors/IDEs are open), there is high network upload (> 1 Mbps) and my Internet access for activities like Google Search doesn't work or becomes too slow. Task manager shows VSCode process as the cause for high network activity even through there are no open VSCode IDEs. This issue happened today too.

Logging off and logging on solves the issue.

I disabled some Bookmark extension I setup recently but I think this problem occurred even prior to Bookmark extension install.

Now, when I tested opening VSCode and closing it twice with different projects, I did not face that issue. Looks like this issue happens off and on.

Given below are some links related to similar/same VSCode issue:

1. vscode process still running in the background after closing the program and uploading to the internet., https://www.reddit.com/r/vscode/comments/1lp0y6h/vscode_process_still_running_in_the_background/ , 2 months ago. This post does not talk of any python process issue. Perhaps it is close to the issue I am facing. However, the post does not get to the cause, as yet. If my problem persists, I should consider adding my issue to this post.
2. https://www.reddit.com/r/vscode/comments/yxive7/vs_code_maxing_out_cpu_and_continues_running/ , 3 yrs ago indicates some Python processes issue. Next time it happens, I should expand the running VSCode process-group (if possible) and see the processes within it.