Activity Bar hover tooltip persists after VS Code loses window focus

[vinnikalessia]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.108.2 (user setup)
• OS Version: Windows_NT x64 10.0.26200

Steps to Reproduce

1. Open another application window and place it next to VS Code (e.g., Notion, Figma, Chrome, etc.).
2. Ensure the other application window is focused (active).
3. Move the cursor over an item in the VS Code Activity Bar and wait for the tooltip to appear.
4. Quickly move the cursor back to the already focused application window (no click required).
5. Observe that the Activity Bar hover tooltip persists.

Expected Behavior

The hover tooltip should disappear when the cursor moves away from the item.

Actual Behavior

The hover tooltip remains visible after moving the curor away from the item.
It only disappears after the cursor re-enters the VS Code window.

Screenshot/image

(Left: Google Chrome, Right: VS Code)

Additional Notes

This appears to be timing-sensitive and occurs when the cursor moves quickly from a VS Code Activity Bar item to an already-focused application window.

It does not require clicking on the other window. The behavior appears independent of the specific application, but the bug was confirmed with multiple apps.

[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 1.109.0. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!

[vinnikalessia]

By the way, I just updated the version to 1.109.0 and the issue is still there.

[vinnikalessia]

I updated the reproduction steps after additional testing. The issue occurs when the second application is already focused and the cursor is moved quickly away from VS Code (no need for additional clicking on second app).