Wired scrollbar click behaviour

[heroboy]

Windows Terminal version

1.20.11781.0

Windows build number

10.0.22631.4317

Other Software

No response

Steps to reproduce

Typically when mouse click the scrollbar(not the thumb), hold the mouse button down. The scrollbar will: page up, , page up, page up, page up, page up,... Then thumb will stop at the mouse pointer position.

But in the current terminal. There are 3 random behavior.

1. Page up/down once and stop.
2. Thumb not stop. And reach the top/bottom position.
3. Thumb move across the mouse pointer position.

Expected Behavior

Not random.

Actual Behavior

see above.

[heroboy]

https://github.com/user-attachments/assets/12989340-50c2-4ff1-a14c-82d142296614

[zadjii-msft]

I'm getting a really similar behavior with the WinUI 3 Gallery app. I'm guessing this is just a WinUI bug that needs to be filed over on https://github.com/microsoft/microsoft-ui-xaml

[carlos-zamora]

Filed https://github.com/microsoft/microsoft-ui-xaml/issues/10122