01-28-2020, 01:01 AM
When you use two fingers to scroll up-down, open a document, slowly scroll down, pause a little, then go slowly up.
What happens :
As you start scrolling down, nothing happens until it starts to match the movement and do scroll down as expected.
When you pause, it stops.
But when you go up, it finishes scrolling down a little before scrolling up.
It's like position are filling a fifo queue instead to react immediately, hence there is a delay corresponding to the length of the queue.
Maybe that might help to spot the bug.
What happens :
As you start scrolling down, nothing happens until it starts to match the movement and do scroll down as expected.
When you pause, it stops.
But when you go up, it finishes scrolling down a little before scrolling up.
It's like position are filling a fifo queue instead to react immediately, hence there is a delay corresponding to the length of the queue.
Maybe that might help to spot the bug.