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[a11y] RangeSlider focus lost during mouse hover or interaction #173574
Description
Reproduction
- In the Flutter repo,
cd dev/a11y_assessments. flutter run- Enable the additional use-cases using the switch in the top-right corner of the app.
- Open the RangeSlider use-case.
- Let go of the mouse and trackpad (this is important!). Use the TAB key to focus on the range slider, then use the ARROW RIGHT/LEFT to confirm that the range slider is operable.
- While leaving the range slider focused, hover the mouse cursor over the range slider.
- You may see that the focus highlight disappeared.
- Try using the ARROW RIGHT/LEFT keys to operate the range slider again.
Expected behavior
The keyboard input focus should remain where it was, and using ARROW RIGHT/LEFT keys should continue moving the focused thumb.
Actual behavior
Thumbs do not react to the keyboard after hovering. Attempting to take back focusing by clicking on thumbs using mouse doesn't help.
Activity
flutter-triage-bot commentedon Feb 5, 2026
This issue is assigned to @hannah-hyj but has had no recent status updates. Please consider unassigning this issue if it is not going to be addressed in the near future. This allows people to have a clearer picture of what work is actually planned. Thanks!
hannah-hyj commentedon Feb 10, 2026
This only happens when voice over is on. From the focus debug, The focus jumps to the root after mouse movement.
I'm not sure what caused the keyboard focus to change here.
I will unassign myself for now since I'm not working on this issue.