I’m not sure under all the circumstances, but when I’m scrolling (using the mouse wheel) through my code, sometimes it just stops. I suspect that certain activities affect the mouse scroll, because when I move my cursor off to the side, scrolling resumes.
I normally have the cursor in the middle of the stack of activities, and moving it to the left or right will let me resume scrolling.
It seems minor, but it’s one more thing that breaks immersion/concentration.
Could be easy to fix with an option to turn it off.