scroll bar for list has unusual click detection when on top of other controls

[twilson90]

It's not as simple as it doesn't work when something's underneath it (like a panel or label), sometimes it works, sometimes it doesn't.
It appears to be random but there must be some criteria I'm not recongizing.
(EDIT - it appears if i hover over the control underneath first, then the scrollbar hover/click is never detected, if I avoid touching any of them then the scrollbar is functional)

I've also experienced a similar issue which is when the the scrollbar is in the bottom right, the handle for the window is clicked instead of the scrollbar.

The list's scroll should have higher click priority over all its contents, and a window's drag handle should have the least click priority over all its contents.

[ruby0x1]

Yea it can be frustrating the scroll handles missing events.
I'm working out a good solution that's more general than the two cases given,
but it's a good point for the window resize handle as well.

Thanks for the report