Discrepancy Between Timeline and Window View

I’m using MPV to watch videos and am seeing a discrepancy between the data displayed on the timeline view and the data being shown on the Activity Window Tile View.

The data being shown on the timeline view is as expected and has calculated the amount of time I was on MPV (top image). However, the amount of time being shown on the Activity Window view is different (bottom image).

Any idea why?

Thanks!

Figured it out in case anyone else is wondering. Activity only counts when the mouse is being moved. Going to change the settings to the ones found in this thread and that should solve the issue.